Q1. The provision in the Indian Patents Act, 1970 that is widely credited with preventing 'evergreening' of pharmaceutical patents — by barring patents on mere new forms of a known substance unless they differ significantly in efficacy — was inserted exclusively through which one of the following?
- A. Patents (Amendment) Act, 1999
- B. Patents (Amendment) Act, 2002
- C. Patents (Amendment) Act, 2005
- D. Patents Rules, 2003