An “office action” is a document written by an examiner in a patent, in response to an application after the examiner has examined the application. The office action cites prior art and gives reasons why the examiner has allowed, or approved, the applicant’s claims, and/or rejected the claims. An office action may be “final” or “non-final”. Our work mainly includes reviewing notices from patent office, preparing responses including office action responses, responding to opposition, hearing etc. Patent prosecution is passing the litmus test of patentability, which occurs in the form of objections/rejections raised by the patent office.