Patent number 372466 has been granted to PFIZER INC. that is titled SUBSTITUTED DIHYDROISOQUINOLINONE COMPOUNDS. The primary independent claim of this patent states a compound of formula, or a pharmaceutically acceptable salt thereof. During the patent prosecution, the patent examiner objected to this patent under section 3(d) of the Indian Patents Act. The patent applicant responded to this objection by stating that Section 3(d) does not apply to all pharmaceutical and chemical inventions.