Inventor
SCHOPFLIN GISELA
DE5 patents
Patents
5 patentsUS4012496AMar 15, 1977
Vaginal ring
SCHERING AG189 citations95
US4012497AMar 15, 1977
Drug excipient of silicone rubber
SCHERING AG81 citations94
US4155991AMay 22, 1979
Vaginal ring
SCHERING AG148 citations93
US4230686AOct 28, 1980
Drug excipient of silicone rubber
SCHERING AG39 citations88
US4034749AJul 12, 1977
Intrauterine contraceptive device
SCHERING AG43 citations88