with a bicyclo ring system containing four carbon atoms

Patents Grantslast 30 patents

  • Information Patent Grant

    3520941

    • Patent number 3,520,941
    • Issue date Jul 21, 1970
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    3456022

    • Patent number 3,456,022
    • Issue date Jul 15, 1969
    • C07 - ORGANIC CHEMISTRY