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Evidence of Use search (EOU) Search is performed to help patent owners identify potentially infringing products in the marketplace. The purpose of EOU search is to identify products or processes in the market which are likely to infringe the patent holder’s patent or even patent application. In order to perform EOU search, thorough understanding of patent infringement and jurisdiction specific laws is important as it is a very sensitive search and any negligence in the process of performing search and analysis of the findings may prove to be dangerous for the organization.

Understanding of rights of patent holder as well as patent infringement is also critical for EOU search. In simple words patent infringement means violation of rights of the patent holder i.e., to prevent third parties from making, using, offering for sale, selling and importing patented product or product made using patented process in a given jurisdiction.

Advantage of EOU search is that the patent holder can get to know about the existing products in the market that may infringe upon his patent (s) and patent holder can take necessary action against the infringer by enforcing his patent rights.

The steps to be followed in order to perform EOU search are as below:

  1. Step 1: Subject matter of patent shall be understood thoroughly, especially the claims. Claims is a part of patent document that seeks legal protection. Further patent claims shall be interpreted in best possible manner with help of case laws pertaining to the particular jurisdiction.
  2. Step 2: Assessment of strength of the patent based upon the corresponding forward and backward citations of the patent document is important because this step determines strategy to be adopted to handle the infringing products found in the EOU search. Further, it is advisable to check legal status, expected expiry date of the patent as well along with chances of it getting invalidated in case any opposition or revocation is filed.
  3. Step 3: A secondary research shall be performed to identity products available in the market that are likely to infringe claims of said patent of the patent holder. A very vital part of the investigation is to assess size and strength of the companies that are manufacturing the infringing products because this helps patent holder to have right strategies in place.
  4. Step 4: Claim maps or claim charts shall be prepared in order to analyse the extent of the overlap of the identified product with said patent claims.
  5. Step 5: Opinion on EOU shall be written based on jurisdiction specific laws.  EOU report will typically have list of infringing products found, mapping of product components of features with patent claims, opinion on patent infringement, strength of the patent, strategies to be adopted to enforce patent rights etc.

Evidence of Use search (EOU) Search is an important search for the patent owners to identify potentially infringing products in the market sothat they can take necessary steps to address it.

Origiin, with a skilled team of patent agents is one of the best patent companies in India offers patent services such as patent searching, and patent filing in India and foreign countries. Origiin also provides value added search services such as Evidence of Use. Origiin, with in-house patent attorney can also help you in drafting and sending patent infringement notices based upon the derived EOU opinion.

Deliverables: EOU report, claim charts along with PDF copy of all prior arts listed in the report

Timeline: 8 business days

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