Inventor

BUCHANAN JR DONALD W

US4 patents

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

ISP INVESTMENTS INC

2 patents

US5347021ASep 13, 1994

Process of vapor phase catalytic hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity using an activated catalyst

ISP INVESTMENTS INC35 citations91

US5122495AJun 16, 1992

Activated catalyst for the vapor phase hydrogenation of maleic anhydride to gamma-butyrolactone in high conversion and high selectivity

ISP INVESTMENTS INC30 citations91

INT FLAVORS & FRAGRANCES INC

1 patent

US6881382B2Apr 19, 2005

Fragrance signaling of an event

INT FLAVORS & FRAGRANCES INC30 citations88

GAF CHEMICALS CORP

1 patent

US5041564AAug 20, 1991

Vapor phase process for production of gamma-butyrolactone

GAF CHEMICALS CORP2 citations59