What is Patent Invalidity Search? A patent invalidity search is generally performed to invalidate the claims of a competitor’s patent or to validate a patent’s claim. A Patent invalidity or opposition search is performed to identify the patent and non-patent works of literature that can impact the claims of the invention. Patent Invalidity Search is an extensive prior art search after the patent has been granted. The primary aim of invalidity search is to find the relevant prior arts which may be left by a patent examiner, to invalidate the competitor’s patent. The Invalidity search patent service is requested only if a company or an entity desire to stop their competitors in the same domain. Patent invalidity search is different from the prior art search because the patent invalidity search targets the claim language use more than the overall idea and concept of the invention. How to do a Patent invalidity search? For conducting the patent invalidity search firstly one should establish the prior art of the claims of the patent in question. Any disclosure that is publically available before the filing date of the patent is considered to be prior art. To invalidate the claims patent one must be analyzed to ascertain the patent application in the whole family, which reveals all of the limitations in the claims (at the independent claim) to invalidate the patent.