P

Inventor

SCHREYER GERD

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

DEGUSSA

36 patents
US4150241AApr 17, 1979

Process for the production of pure racemic acid and mesotartaric acid and separation of maleic acid from synthetic tartaric acid

DEGUSSA21 citations81
US4048225ASep 13, 1977

Process for the production of pure racemic acid and mesotartaric acid

DEGUSSA20 citations81
US4303621ADec 1, 1981

Process for the recovery of methionine and potassium bicarbonate

DEGUSSA25 citations79
US4025540AMay 24, 1977

Process for the production of pure carboxylic acid-1-monoglycerides

DEGUSSA25 citations77
US4377344AMar 22, 1983

Apparatus for bringing liquids in contact

DEGUSSA15 citations72
US4314064AFeb 2, 1982

Process for the production of nicotinamide

DEGUSSA10 citations72
US4228084AOct 14, 1980

Process for the production of glycidyl methacrylate

DEGUSSA10 citations72
US4197161AApr 8, 1980

Process for the recovery of catalysts in the epoxidation and hydroxylation of olefinic compounds

DEGUSSA11 citations72
US4052445AOct 4, 1977

Process for the production of alkyl sulfonic acids

DEGUSSA6 citations72
US4009188AFeb 22, 1977

Continuous process for recovery of glycide

DEGUSSA7 citations71
US3960766AJun 1, 1976

Catalyst for the production of pyridine and 3-methylpyridine

DEGUSSA9 citations71
US4065510ADec 27, 1977

Production of an alkenol from an alkene oxide

DEGUSSA14 citations70
US4101570AJul 18, 1978

Process for the production of percarboxylic acid solutions in organic solvents

DEGUSSA8 citations68
US4271297AJun 2, 1981

Process for the production of suspension or solutions of cyanuric chloride in organic solvents (I)

DEGUSSA5 citations62
US4171445AOct 16, 1979

Process for the production of pyridine and 3-methyl pyridine

DEGUSSA3 citations62
US4059619ANov 22, 1977

Process for the preparation of percarboxylic acid solutions

DEGUSSA6 citations62
US4046862ASep 6, 1977

Process for the production of cyanogen chloride using hydrogen peroxide with pressure

DEGUSSA5 citations62
US4017413AApr 12, 1977

Process for the production of solutions or suspensions of cyanuric chloride in aqueous organic solvents

DEGUSSA6 citations62
US3949060AApr 6, 1976

Process for the production of cyanogen chloride

DEGUSSA2 citations62
US4139536AFeb 13, 1979

Process for the recovery of nicotinamide

DEGUSSA2 citations61
US4058662ANov 15, 1977

Process for the substitution of chlorine atoms of cyanuric chloride

DEGUSSA6 citations61
US4054739AOct 18, 1977

Process for the substitution of chlorine atoms of cyanuric chloride

DEGUSSA6 citations61
US3961023AJun 1, 1976

Process for the production of cyanogen chloride and hydrogen chloride

DEGUSSA3 citations61
US3946069AMar 23, 1976

Process of making penicillamine

DEGUSSA2 citations61
US3931208AJan 6, 1976

Process for the production of thiazolines-(3)

DEGUSSA4 citations61
US4089887AMay 16, 1978

Process for the production of isothiocyanates

DEGUSSA4 citations59
US4387081AJun 7, 1983

Process for the production of hydrogen cyanide

DEGUSSA4 citations58
US4090024AMay 16, 1978

Process for the production of skatylhydantoin

DEGUSSA0 citations52
US4007222AFeb 8, 1977

Process for the production of 2-chlorocaproic acids

DEGUSSA1 citations52
US3956304AMay 11, 1976

Preparation of 2-methyl-4-isopropylidene-2-oxazolin-5-one

DEGUSSA1 citations52
US4237299ADec 2, 1980

Process for the recovery of pyridine and 3-methylpyridine

DEGUSSA0 citations51
US4089892AMay 16, 1978

Process for the preparation of percarboxylic acid solutions

DEGUSSA1 citations51
US3947552AMar 30, 1976

Process for the purification of cyanogen chloride

DEGUSSA1 citations51
US4434148AFeb 28, 1984

Working up of the residual gases resulting from the production of cyanuric chloride

DEGUSSA0 citations46
US4269979AMay 26, 1981

Process for the production of suspension or solution of cyanuric chloride in organic solvents (II)

DEGUSSA0 citations41
US4061674ADec 6, 1977

Process of making penicillamine

DEGUSSA0 citations40

BAYER AG

5 patents

GEIGER FRIEDHELM

2 patents

HENTSCHEL KLAUS

1 patent