P

Inventor

VALENTINE JR DONALD H

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

HOFFMANN LA ROCHE

3 patents
US4123465AOct 31, 1978

Chiral tertiary phosphines

HOFFMANN LA ROCHE6 citations70
US4139720AFeb 13, 1979

Process for the preparation of aldehydes

HOFFMANN LA ROCHE1 citations50
US4123464AOct 31, 1978

Process for the preparation of aldehydes

HOFFMANN LA ROCHE1 citations50

CATALYTICA ASSOCIATES

2 patents
US4603216AJul 29, 1986

Process for the preparation of urethanes

CATALYTICA ASSOCIATES7 citations71
US4629804ADec 16, 1986

Process for preparation of urethanes

CATALYTICA ASSOCIATES5 citations60

CYTEC IND INC

1 patent
US6344505B1Feb 5, 2002

Mono- and bis-benzotriazolyldihydroxybiaryl UV absorbers

CYTEC IND INC42 citations91