Intellectual Property Code
Section 46. Rights Conferred by a Patent Application After Publication. - The applicant shall have all the rights of a patentee under Section 76 against any person who, without his authorization, exercised any of the rights conferred under Section 71 of this Act in relation to the invention claimed in the published patent application, as if a patent had been granted for that invention: Provided, That the said person had:
46.1. Actual knowledge that the invention that he was using was the subject matter of a published application; or
46.2. Received written notice that the invention that he was using was the subject matter of a published application being identified in the said notice by its serial number: Provided, That the action may not be filed until after the grant of a patent on the published application and within four (4) years from the commission of the acts complained of. (n)