The word “patent search” or “prior-art search” in patent law means any information that exists in the form of publication or patent or prior use, before the date of the filing a patent application. This knowledge (or “prior art” or “state of art”) may be in any form such as patent, scientific literature, publications (such as journal articles, proceedings of conferences, data books and display information from technical exhibitions), public discussions or news from anywhere in the world. The prior-art search is often performed by a patent attorney or a patent agent or a patent searcher and it is conducted through various patent and non-patent databases and other relevant technological websites to identify relevant prior-arts.
Novelty of an invention is always determined before inventive step because the technical contribution of the inventor can be assessed only by knowing the novel elements of the invention. The invention is not considered to be novel if information about the invention has already been disclosed in public.
The right time of doing patent search is at the stage of idea itself. Before investing time and money to develop the idea, it is extremely important to assess whether the idea is novel or already published or claimed by anyone else. Often the inventors assume that the idea is novel by looking at the products which are already in market and comparative analysis of such products with their idea makes them believe that idea is novel. The hard reality is that only small fraction of patents is commercialized, whereas a big chunk of patents, even though are not commercialized, but certainly form part of the prior art and may prevent an inventor from getting a patent on his invention.
Prior art search is performed at various stages of product/process development and the purpose of doing it may vary depending upon the requirements. The main reasons for which prior art search is done are:
1. Before filing for patent
Inventor may perform prior art search for his invention before filing for a patent to make sure that on the day of filing patent application, his invention is novel and there is no existing patent or publication of the invention before he files the patent application.
2. At the time of planning R & D
Due to heavy competition, today companies spend lots of time and resources for Research and Development. Patent search may be performed by researchers in a particular area of technology to assess the work already done and based upon such existing knowledge they can plan R & D in a better and effective manner. Prior art search gives a fair idea on the research already done in a particular area of technology and the inventor can work further on it instead of working again on the same area. Prior art search also provides ideas to refine and improve the invention by identifying whether the invention has significant improvement over existing inventions.
3. Before product launch
A company may perform prior art search before launching product in a specific market to make sure that it is not infringing patent rights of any third parties by the product launch. This search is called as “Freedom To Operate search (FTO Search)” or “Clearance Search”.
4. Technology Landscape studies for devising IP Strategy
The purpose of Technology Landscape study is to understand the technology trend, strength of competitors, to learn latest technology advancement and analyze the patent activity related to technology of interest. Based on Technology Landscape Analysis (also called as Patent Landscape Analysis), appropriate IP strategy, in compliance with business strategy is devised for the companies because a good IP strategy is a critical part of business plan and growth at any stage.
5. During opposition or revocation
If anyone wants to oppose or revoke a patent application or a granted patent, patent search is necessary to identify the grounds on the basis of which validity of a patent/application shall be contested.
6. Patent Licensing
Patent licensing is the process of transferring patent rights to third party by the patent holder for a particular period of time, in a given jurisdiction. At the time of patent license, patent search is performed to understand strength of the patent by comparing the patent to be licensed with the prior art.
The prior art or patent search is essential for innovation driven companies not only to plan research, take decision on patent filing but also to formulate appropriate IP strategies.
Therefore, it is imperative for the inventors to perform patent search at the stage of idea itself, assess chances of patentability as well as infringement of patent right of the third party (ies) before investing money and time in research. For the inventor to make a decision on the patentability of the invention, it is critical to get the search done in time.
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