Person of Ordinary Skill in the Art Pharmaceutical Skilled Chemist

Obviousness is 1 of the about of import tests a patent bidder has to satisfy in gild to be entitled to the grant of a patent. While in a large number of countries the examination of obviousness has been crystallized, India is on its manner to formalizing such a test.

A patent is granted for an invention which is something new, not obvious and useful. Useful merely means 'capable of industrial awarding' that is to say, utility. In so far as utility of a patent is concerned, the first question that arises is what is the quantum of utility? As was held past the Bombay High Court in the Unichem Laboratories case the amount of utility to back up a patent is very small-scale and information technology is not necessary that the invention as described should be commercially useful.

If something is known and lacks novelty, no further question arises and it is clearly not an invention. If yet the invention is new, the 2nd question that arises namely, "Are the changes made obvious?" In one case it is clear that the invention is new since it has not been anticipated by prior fine art, the next research is to determine the magnitude of "novelty" or somehow mensurate it to check and see whether the steps taken by the Patentee are routine and obvious or are they inventive so as to deserve a patent.

Obviousness by its very definition is something patently, straight forward and in one case realizable. It'due south like stating the 'obvious.' For example, visualizing from a distance that a short child will not be able to open the door latch, to block the mouth of a jar whose hat has been lost with a material or folded paper, to prevent a tabular array from rocking due to its uneven legs past putting a little piece of paper underneath one leg, to balance an object with some support, irrespective of the nature of the support or to connect two objects with a fastener – exist it a nut, bolt a wire passing through or adhesive.

From whose optics is obviousness assessed?: The hypothetical person of ordinary skill in the art

The building of the constabulary of obviousness is founded on the hypothetical construct of a "person of ordinary skill in the art". It is from the optics of such a person of ordinary skill that the obviousness of an invention is judged. There are several important elements of the person of ordinary skill in the art:

i. The person of ordinary skill in the art must belong to the relevant field. In other words, for assessing the inventive step of an invention pertaining to drugs, the person of ordinary may be from the field of medicinal chemistry.

ii. The person of ordinary skills must await at the prior art from a position of his personality including the fact that he may or may not be risk taking and is bailiwick to normal biases and prejudices. The characteristics of a person of ordinary skill in the art are eloquently explained in the Genentech example as follows:

"The skilled person in this field is well aware of the fact that fifty-fifty a small structural modify in a product (e.thou. a vector, a poly peptide, a Deoxyribonucleic acid sequence) or in a procedure (due east.g. a purification process) can produce dramatic functional changes. Therefore, the said expert would constantly be conditioned by the prior art and, earlier taking action, would advisedly ponder whatsoever possible modification, alter or adjustment against the background of the existing noesis. Under these circumstances, in the Board's view, the skilled person would adopt a bourgeois attitude. However, this must not be seen in the sense of being reluctant or opposed to modify or suit a known production or procedure, but rather in the sense of beingness cautious. For example, the skilled person in question would neither get confronting an established prejudice nor try to enter into "sacrosanct" or unpredictable areas nor take incalculable risks….."

iii. That the person of ordinary skills in the art must not be supplied with the solution to the problem. He must be given the problem and asked whether he can solve it. This is referred to as the 'Hindsight Element'. Obviousness is not established past drawing a line

from the solution to the problem or finding the caption for how the inventor did it. It is non permissible to look at the invention and try and figure out the logic behind information technology and then look for prior art documents which support disclosures throwing low-cal on such logic. This concept of hindsight is explained in item at a later department in this article.

Thus, the 3rd element is that the obviousness has to be determined equally on the priority engagement and ex-post facto analysis is not permitted.

Approaches to obviousness

The Indian approach thus far

It was non until the twelvemonth 2005 that India for the first time defined as to what constitutes an "inventive footstep" past incorporating a new provision in the definition department of the Patents Human activity. Section two(1)(ja) of the Act defines "inventive step" to hateful "a feature of an invention that involves technical advance equally compared to the existing cognition or having economical significance or both and that makes the invention not obvious to a person skilled in the fine art."

Since the twelvemonth 1972, when the Patents Act, 1970 was brought into being, there take been a scattering of cases in India that have dealt with the obviousness issue extensively. In the Bishwanath Prasad Radhey Shyam case, the Supreme Court held that obviousness has to exist strictly and objectively judged. The Supreme Court further recognized that obviousness is something that is a natural suggestion of what was previously known.

Another test of whether a certificate is a publication which would negate the existence of inventive step, as suggested by the Supreme Court in the Bishwanath Prasad instance is equally under:

"Had the document been placed in the hands of a competent craftsman (or engineer as distinguished from a mere artisan), endowed with the common general noesis at the 'priority engagement', who was faced with the problem solved by a patentee just without knowledge of the patented invention, would he take said, "this gives me what I want?" (Encyclopedia Britannica. To put it in some other form: "was it for practical purposes obvious to a skilled worker, in the field concerned, in the state of knowledge existing at the date of the patent to be found in the literature then available to him, that he would or should make the invention the subject of the claim concerned?" [Halsbury, 3rd Edn. Vol. 29, p 42 referred to past Vimadalal J. of Mumbai High Courtroom in F.H & B. Corporation v. Unichem Laboratories AIR 1969 BOM 255."

This test of obviousness was reinforced past the Unmarried Judge of the Delhi High Court in Roche five. Cipla. In dissimilarity, in the Enercon decisions the Intellectual Property Appellate Board invalidated certain patents and gave contradictory approaches to what ought to be the obviousness tests. In parts, the IPAB stated that the test of 'obviousness' in Republic of india is a different one from that in USA and U.k.. At another identify, the IPAB practical the Windsurfing/Pozzoli tests of the UK courts (discussed below). The standard of obviousness in India is being currently litigated before various forums in Bharat, including the Patent Function, the Intellectual Belongings Appellate Board, the various Loftier Courts also equally the Supreme Court. In fact, the Supreme Court in the Novartis case devoted several days of hearing on the interpretation of Department 2(ane)(ja) and it is anticipated that the judgment will shed light on the standard of obviousness to be adopted in India.

The United Kingdom arroyo

In the instance of Windsurfing International Corporation v. Tabur Marine Ltd. in the UK, a four step test for inventive footstep was given. As the Pozzoli case came along, four-stride test was split into five as follows:-

(1) (a) Place the notional "Person skilled in the art"; (b) Identify the relevant common full general knowledge of that person;

(two) Place the inventive concept of the claim in question or if that cannot readily be done, construe information technology;

(three) Identify what, if whatsoever, differences exist between the thing cited as forming function of the "state of fine art" and the inventive concept of the claim or the merits as construed.

(4) Viewed without any knowledge of the alleged invention as claimed do those differences constitute steps which would accept been obvious to the person skilled in the fine art or do they require any degree of invention.

What emerges from the above assay is that when conducting an "obviousness" enquiry to determine whether an alleged invention is patentable or not, Courts in various jurisdictions including Republic of india, have recommended a five point test, based on the existence of statutory terms in their domestic legislations (for example, the Windsurfing examination in Great britain often referred to as the Windsurfing / Pozzoli Test).

The "Long Jumper" Exam

The obviousness test can best be illustrated past the "Long Jumper" exam that visualizes an athlete, a long jumper. A cartoon illustrating him in figure-1 (following page) shows that he is expected to jump from a baseline to a hypothetical line fatigued a few yards ahead. At that place is an audience that watching him and volition try him predict whether he can jump from the baseline to the forward line. I person in the audience thinks that he will not leap equally he knows the athlete and knows that he has recently recovered from a lumbar injury, while another viewer thinks that he is familiar with the determination of the athlete and offers an opinion that the athlete will make information technology. A third person may be the final guess and may have into account all factors to give a last opinion.

Transposing this situation into the obviousness context, the elements, therefore, are:

(a) Take an athlete and this element is akin to a person of ordinary skills in the art;

(b) The athlete has certain concrete and mental strength and this is akin to mutual full general cognition of the other person of ordinary skills in the art;

(c) The baseline from where the athlete is to beginning is the prior art or fifty-fifty the closest prior art;

(d) The line to which he has to jump is like the inventive concept; and

(e) The question to be asked is whether he volition make information technology.

The audience is the Plaintiff'southward legal experts (proverb that he will non make it) and the Accused's legal experts (proverb that he volition certainly make it). The conclusion maker is the Judge.

Figure 1: Cartoon showing the examination of obviousness

The subjectivity of the obviousness test

It is well recognized that while obvious standards effectually the globe involve objectivizing as-much-as can exist done, merely at the end of the day, the obviousness test is a highly subjective 1. In order to reduce the subjectivity in obviousness determinations, Courts have often prescribed the objective indicia or the secondary considerations for determining obviousness. The subjectivity of the obviousness standards has been the explained by Chisum in his treatise on the Law of Patents in the following words:

""The legal conclusion as to whether a given product or process was obvious at the time of invention to i of ordinary skill in the pertinent fine art who had noesis of all relevant prior art is a path fraught with pitfalls, including especially the inherent difficulty of making such a hypothetical judgment and the tendency to utilise (even subconsciously) "hindsight" and the inventor'due south own piece of work to make up one's mind obviousness. The antagonist arrangement fails to guide adequately the decision maker along the path; in infringement trials, the opposing sides tend to offer conflicting practiced testimony. Consequently, the courts look to objective guideposts – what Judge Learned Hand in his many incisive opinions on the subject called the "history of the art" for assistance and assistance"

Since the obviousness test is subjective and is largely a question of personal judgment, Courts take placed the burden of proving invalidity on the opponent or the accused and crave the said burden to be discharged with articulate and cogent evidence. Thus, if information technology appears according to one opinion that a person of ordinary skills would accept a left plow, while according to another stance that he would take a right turn, it is non clear as to how he would react and respond and thus the patent cannot exist invalidated.

It is also important to note that the test of obviousness is field – specific. In the mechanical world, it is easy to visualize the obvious. Notwithstanding, in the world of chemistry and pharmaceuticals in particular, it is difficult to visualize what a small change to the structure of a compound may outcome in. Even though fluorine, chlorine and bromine are all halogens, changing one to the other of a compound may result in completely different properties. Thus, in Eli Lilly vs. Zenith Goldline, changing the fluorine to hydrogen created olanzapine which was a far superior product to the previous chemical compound. Similarly, changing the Ethyl grouping to a Methyl grouping resulted in far superior biological and therapeutic properties.

It is well-known that modest changes in chemistry may issue in major and dramatic results. This unpredictability in chemistry has led the Nobel Prize Committee to country how hard it was to grant Nobel Prize in chemistry as against physics. They said:

" I must sympathize with the chemists and the Nobel Pharmacist jury of the time who were faced with all this. How can Chemists keep rail of this flight circus of acrobatics energy shifts, bondings and reactions? Certainly no unmarried existing approach sufficed."

The millions of dollars that are spent by the pharmaceutical industry each year is primarily because different compounds are picked out from combinatorial libraries and then tested for sure backdrop in-vitro or in the lab. Those that are promising candidates are and then worked with all sorts of modifications to see the consequence of those modifications and one in several grand compounds may turn out to accept exceptional chemical, physical or biological properties. The development from the initial stage to the industry of a viable drug takes ten to fifteen years, may be even longer, as a lot of time is lost in checking whether the drug would practice well in human beings (in-vivo). The drug is also tested for solubility, bio-availability, thermodynamic stability, etc. A critical factor is safety and toxicity as a drug must non lead to unwanted side furnishings.Where drugs target specific receptacles, they need to exist selective and selectivity might require alterations of a structure.

The Hindsight Bias: Practice not look from the middle of the inventor

A well recognized concept in psychological research, hindsight bias is the inclination to see events that have already occurred equally being more predictable than they were before they took place. The recognition is specially relevant for obviousness determinations in patent law, since in one case a production and procedure have been invented, in hindsight it appears to be obvious. Courts in the United states of america have repeatedly cautioned confronting the retrospect. For instance, in the Ortho – McNeil example , the Court said that it is impermissible to simply retrace the path of the inventor with hindsight and discount the number and complication of the alternatives that are faced by the person skilled in the fine art should he attempt to reach the invention from the prior fine art.

For demonstrating the hindsight bias, the author conducted the following experiments:

(a) The "Maze retrospect bias" experiment

12 participants participated in the maze experiment which was divided into two parts. In the first part, an ordinary maze with its 3 corners covered with "Post-its" was given to a grouping of participants and they were asked to find the style out to the exit point of the maze. Every time a participant reached a covered corner, the path was shown past unflagging the Postal service-its. The procedure was repeated on reaching a dead stop until the participants could solve the maze and the time taken by each participant was noted.

In the second part, an ordinary maze was given to the participants without any covered corners and they were asked to solve it for its exit point. Time taken by each participant to complete the maze was recorded past the conductor of the experiment.

The objective of the experiment was obvious and known to the participants beforehand and each maze was approximately to be completed inside thirty seconds. The time difference between the ii parts could exist used to calculate the quantitative value of "Hindsight Bias".

It was observed that all the participants took a longer time to complete the maze in part i of the experiment which had covered corners. On the other hand, the participants could solve the second maze in lesser time and with greater efficiency.

It could be ended that when an individual is oblivious of the result, it takes them longer time to reach the object and the efficiency levels are low. On the other mitt, when the object is known to the individual, it takes them less time to accomplish the object with higher efficiency. The retrospect bias experiment demonstrated that when you lot know where you have to get, it is far quicker than when you get lost.

Patent law faces a critical quandary. It is important for an invention to be non obvious at the time of its invention for it to be granted a patent. Once the object to be accomplished is obvious and pre-mediated, the path to attain the object is effortless. Determining whether an invention was not obvious in the by raises daunting specter of hindsight.

Figure 2: The Maze Hindsight Experiment

Effigy 3: The 'Block on the Table' Test

The Pinkish Stick Experiment:

The experiment concerns ii lists as follows:-

Listing-I (receptacles), which tin can be:

(a) A jar
(b) A bottle
(c) A box; AND

List-Ii (consisting of objects to be placed in a receptacle), namely:

(a) A bloom
(b) A stick
(c) A small fruit

If I were to pick 1 object from each of the lists and combine them with colours which are commonly viii to 10 usual candidates (for example, bluish, cherry-red, etc.) I could get a unique combination which would in almost cases exist very hard to visualize for someone. A third experiment was based on this and referred to as the Pinkish Stick Experiment – as a pink color stick was placed in a brownish coloured box.

A grouping of participants were called. The conductor of the experiment had a combination of a 'pink stick in a chocolate-brown box' written downwards in a slice of paper which was hidden from the participants. The participants were asked to choose an object from List Two and attach information technology to a colour from the listing of colours mentioned. Then they were asked to choose a receptacle from list I with a color to identify the previous object into. It was observed that none of the participants could match the conductor's combination. Every participant identified their own unique combination.

If you take the number of colours for both the receptacles group and the object grouping, and so the possibilities are big. This experiment demonstrated that even to visualize a pink stick in brownish box was so difficult, although nosotros oft hear persons attacking inventions say that if you accept one object from this list and another object from that list and combine the ii, and then you get the invention.

Their attack is based on the fact that the lists are known. Thus, it is easy to say that sticks are known, boxes are known and the colours pinkish and dark-brown are known and then in that location is zilch so great about visualizing a pinkish stick in a brown box.

Still, if the pink stick were a solution to a circuitous problem, you would need much more than than routine and obvious visualization by an ordinary person in the merchandise to get in at it.

One learning from the in a higher place experiment is that to render the complex solution obvious, there must be some reason, motivation, teaching or suggestion which should prompt the person to selection an object from each of the lists. Without such a reason, motivation, teaching or proffer, it would exist impossible for a person of ordinary skill to simply pick the correct objects from both lists and reach the circuitous solution.

The above tin also exist demonstrated by means of some other experiment, the 'Block on the Table' experiment:

A survey was conducted with 20 people. They were asked to look at a picture A comprising of a prominent white cake placed on a table for 15 seconds. The picture was taken away and they were asked to listing three things they remembered to take seen in the pic. Again, they were shown a picture B for xv seconds where there were a lot of other things including a cake on a tabular array which was merged in between other objects. Based on their observation, they were again asked to listing iii things they remembered to accept seen in the motion-picture show.

It was found that 85 % of the people could find the cake in picture A while only 30 % of the people surveyed could find the block in Picture B. It was clear that the likelihood of identifying an object was loftier when information technology was prominent and distinctly visible only the likelihood of its identification substantially decreased when the same object was merged with other objects and wasn't prominent like the one in the previous picture. Had the cake in the second pic been a prominent white cake like the 1 in the first moving picture, it would be easily identifiable. But, in the presence of other miscellaneous objects, it tends to get lost in the motion picture. Hence, at that place is a trend of an ordinary prudent person to get bullheaded to what is obvious.

Thus, the following emerges from the higher up experiments:

(a) Patent law faces a critical quandary. It is important for an invention to be non obvious at the time of its invention for it to be granted a patent. Once the object to be achieved is obvious and pre-mediated, the path to reach the object is effortless. Determining whether an invention was non - obvious in the past raises daunting specter of hindsight.

(b) The above experiment showed that in a thick patent specification, if a item compound or disclosure appears, information technology may be missed past the person of ordinary skills in the art. The question to ask is whether he would discover information technology, not whether he could observe it. It is this "likelihood" and "potentiality" which has to be seen. Sometimes, a person gets blind to the obvious.

Therefore, the maze experiment, the block on the experiment and the pink stick experiment will pb 1 to the decision that obviousness, in patent constabulary, denotes a subjective analysis of facts and law. India, as an epicenter of patent battles, has recently witnessed a deluge of enquiries into obviousness. The cited cases and the ensuing experimentation clearly denotes that the enquiry of obviousness call for a radical shift in approach. That existence said, this article has endeavored to highlight the obscure.

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Source: https://www.expertguides.com/articles/obviousness-a-vague-phantom/arhrudyz

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