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Inventor

GEISSMANN FELIX

CH4 patents
⚠️ This page may combine multiple inventors who share the name “GEISSMANN FELIX”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SIEGFRIED AG

3 patents
US4668786AMay 26, 1987

P-fluorobenzoyl-piperidino alkyl theophylline derivatives

SIEGFRIED AG13 citations71
US4603204AJul 29, 1986

Theophylline derivatives

SIEGFRIED AG7 citations71
US4436913AMar 13, 1984

1H- and 2H- indazole derivatives

SIEGFRIED AG6 citations61

SIEGFRIED AKTIENGESSELSCHAFT

1 patent
US4526898AJul 2, 1985

Antihypertensive 4-(2-imidazolin-2-yl-amino)-2-methyl-indazole

SIEGFRIED AKTIENGESSELSCHAFT1 citations44