P

Inventor

SCHROEDER LUDWIG

DE11 patents
⚠️ This page may combine multiple inventors who share the name “SCHROEDER LUDWIG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CELAMERCK GMBH & CO KG

5 patents
US4786317ANov 22, 1988

4-phenoxy-pyridines having herbicidal activity

CELAMERCK GMBH & CO KG4 citations61
US4655824AApr 7, 1987

Certain trifluoromethoxy-phenoxy-pyridines having herbicidal activity

CELAMERCK GMBH & CO KG3 citations61
US4523945AJun 18, 1985

2-Amino-6-(cyclopropylmethyl-amino)-pyrimidines useful as herbicides and microbicides

CELAMERCK GMBH & CO KG2 citations61
US4509972AApr 9, 1985

N-Pteridinyl-ureas

CELAMERCK GMBH & CO KG3 citations61
US4453972AJun 12, 1984

Phenoxy pyridine derivatives and herbicidal compositions containing same

CELAMERCK GMBH & CO KG2 citations61

SHELL INT RESEARCH

3 patents
US4944791AJul 31, 1990

Herbicidal hydantoins

SHELL INT RESEARCH92 citations94
US4987232AJan 22, 1991

Preparation of 2-chloropyridine 3-carboxylic acid esters

SHELL INT RESEARCH7 citations72
US4920222AApr 24, 1990

Preparation of 3,3-diarylacrylic acid amides

SHELL INT RESEARCH2 citations61

AMERICAN CYANAMID CO

2 patents
US5679866AOct 21, 1997

Fungicidal methods, compounds and compositions containing benzophenones

AMERICAN CYANAMID CO19 citations89
US5922919AJul 13, 1999

Fungicidal methods, compounds and compositions containing benzophenones

AMERICAN CYANAMID CO7 citations71

SHELL RES LTD

1 patent
US5206372AApr 27, 1993

Preparation of 2-chloropyridine derivatives

SHELL RES LTD16 citations72