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Services | Patent Invalidation Search, Invalidity/Validity of Patents

Patent Invalidation Search

An Invalidity Search is a prior art searchdone after a patent issues. The purpose of an invalidity (or validity) search is to find prior art that the patent examiner overlooked so that a patent can be declared invalid. As a searcher, we are expected to dig deep into the domain to find critical prior art overlooked by the patent examiner, which would allow the client to challenge another’s patent (“invalidity”) or be prepared to defend a patent infringement allegation by a competitor (“validity”).

Invalidity Search Cycle

Invalidation Search Approach

How We Proceed

How TTConsultants Proceed


Patent Databases Patent Databases

How We Differ from Others

  • Combining Manual & Automated Search
  • Combining Manual & Automated Search
  • Customized Report Formats as per Client Requirements
  • Customized Report Formats as per Client Requirements


Search Reports