To carryout an effective invalidity search, one should follow the below steps:
(a) Understand the detailed concept of the claims you are targeting for invalidation. (b) Search for relevant prior art, including patents, applications, and literature that predates the priority date of the target patent. (c) Analyze and map the claims of the target patent with the identified prior art. (d) Consult with a patent professional and prepare a document outlining why the claims of the target patent are invalid.