law: Trade Marks Act, 1999  
  13. Prohibition of registration of names of
  
  chemical elements or international non proprietary names. – 
  No word –
  (a) which is the commonly used and accepted
  
  name of any single chemical element or any single chemical compound (as
  
  distinguished from a mixture) in respect of a chemical substance or preparation
  
  , or
  (b) which is declared by the World Health
  
  Organization and notified in the prescribed manner by the Registrar from time
  
  to time, as an international non – proprietary name or which is deceptively
  
  similar to such name.
  Shall be registered as a trade mark and any
  
  such registration shall be deemed for the purpose of section 57 to be an entry
  
  made in the register without sufficient cause or an entry wrongly remaining on
  
  the register, as the circumstances may require.