Inventor

DRYDEN JR HUGH L

US7 patents

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

SEARLE & CO

4 patents

US4057543ANov 8, 1977

Process for the preparation of 17β-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone

SEARLE & CO7 citations68

US4141920AFeb 27, 1979

Process for the preparation of trimethylsulfoxonium bromide

SEARLE & CO6 citations66

US4555362ANov 26, 1985

Method and intermediates for producing α-L-aspartyl-L-phenylalanine

SEARLE & CO0 citations49

US4057542ANov 8, 1977

Process for the preparation of 17β-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone

SEARLE & CO1 citations44

NUTRASWEET CO

3 patents

US5053532AOct 1, 1991

One-pot process for the preparation of α-L-aspartyl-L-phenylalanine methyl ester hydrochloride

NUTRASWEET CO3 citations60

US4945172AJul 31, 1990

Preparation of N-formyl-L-aspartic anhydride

NUTRASWEET CO0 citations50

US5476961ADec 19, 1995

One-pot process for the preparation of α-L-aspartyl-L-phenylalanine methyl ester hydrochloride

NUTRASWEET CO0 citations39