P

Inventor

VERBRUGGE PIETER A

NL26 patents
⚠️ This page may combine multiple inventors who share the name “VERBRUGGE PIETER A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHELL OIL CO

24 patents
US4285882AAug 25, 1981

Trihalocyclopropyl carbonates

SHELL OIL CO5 citations73
US4056509ANov 1, 1977

Preparation of benzyl cyanides

SHELL OIL CO9 citations71
US4388247AJun 14, 1983

Trihalomethylation of aldehydes

SHELL OIL CO1 citations62
US4305890ADec 15, 1981

Cyclopropyl dihalo phosphites

SHELL OIL CO1 citations62
US4298756ANov 3, 1981

1R, Cis 2,2-dihalovinyl-3,3-dimethylcyclopropylmethanol and ester derivatives

SHELL OIL CO2 citations62
US4294765AOct 13, 1981

Cis-lactone pyrethroid intermediates

SHELL OIL CO3 citations62
US4247711AJan 27, 1981

Preparation of 2-formyl-3,3-dimethylcyclopropaneacetic acid

SHELL OIL CO4 citations62
US4242279ADec 30, 1980

2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropylacetone pyrethroid intermediates

SHELL OIL CO3 citations62
US4132728AJan 2, 1979

Preparation of nitriles

SHELL OIL CO4 citations62
US4239707ADec 16, 1980

Novel 8-substituted bicyclo(3,2,)-octanes

SHELL OIL CO2 citations61
US4230891AOct 28, 1980

2-(2,2-Dihalovinyl)-3,3-dimethylcyclopropanecarbaldehyde dimethyl acetal

SHELL OIL CO2 citations60
US4036887AJul 19, 1977

Preparation of 3-bromobenzaldehyde

SHELL OIL CO3 citations60
US4012430AMar 15, 1977

Process for the preparation of cyclopropane derivatives

SHELL OIL CO6 citations60
US4008287AFeb 15, 1977

Process for the preparation of cyclopropane derivatives

SHELL OIL CO6 citations60
US4812581AMar 14, 1989

Catalytic hydrogenolysis

SHELL OIL CO2 citations59
US4855452AAug 8, 1989

N-substituted azetidine carboxylate derivatives

SHELL OIL CO4 citations58
US4025562AMay 24, 1977

Process for the preparation of macrocyclic ketones

SHELL OIL CO3 citations54
US4554109ANov 19, 1985

Esters of 1,5-dimethyl bicyclo [3.2.1] octan-8-ol

SHELL OIL CO0 citations51
US4307243ADec 22, 1981

Process of preparing dihalovinyl compounds

SHELL OIL CO1 citations51
US4219504AAug 26, 1980

Preparation of 2-(2-acetyl-3-oxobutyl)-3,3-dimethylcyclopropanecarbaldehyde

SHELL OIL CO0 citations51
US4180520ADec 25, 1979

Preparation of nitriles

SHELL OIL CO1 citations51
US4042616AAug 16, 1977

Preparation of cyclopropanecarboxylates

SHELL OIL CO0 citations49
US4778577AOct 18, 1988

Process for preparing azetidine derivatives; and intermediates therein

SHELL OIL CO0 citations48
US4421935ADec 20, 1983

Process for the preparation of bicyclo [2.2.] heptene derivatives

SHELL OIL CO0 citations41

SHELL INT RESEARCH

2 patents