Inventor

COFFEN DAVID LLEWELLYN

5 patents

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

HOFFMANN LA ROCHE

4 patents

US4093654AJun 6, 1978

Production of pyridoxine intermediates from diketene

HOFFMANN LA ROCHE15 citations70

US4026901AMay 31, 1977

Conversion of 4-lower alkyloxazole-5-carboxamide to 4-lower alkyl-5-cyanooxazoles

HOFFMANN LA ROCHE15 citations70

US4118587AOct 3, 1978

Novel 4-phenoxy-5-sulfamylbenzoic acid derivatives

HOFFMANN LA ROCHE3 citations59

US3932399AJan 13, 1976

2,5-Epithio-1,4-benzodiazepines

HOFFMANN LA ROCHE1 citations50

SYNTEX LLC

1 patent

US6355641B1Mar 12, 2002

Oxazolone derivatives and uses thereof

SYNTEX LLC14 citations82