Inventor
PICKENHAGEN WILHELM
DE24 patents
⚠️ This page may combine multiple inventors who share the name “PICKENHAGEN WILHELM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FIRMENICH & CIE
10 patentsUS4088649AMay 9, 1978
Process for preparing a diketo-piperazine
FIRMENICH & CIE53 citations94
US4006261AFeb 1, 1977
Flavoring with mixtures of theobromine and cyclic dipeptides
FIRMENICH & CIE65 citations93
US4374051AFeb 15, 1983
Utilization of nitrogen containing heterocyclic derivatives as perfume ingredients
FIRMENICH & CIE7 citations72
US4283433AAug 11, 1981
Flavoring with α,β-unsaturated aldehydes
FIRMENICH & CIE3 citations62
US4387248AJun 7, 1983
α,β-Unsaturated aldehydes and use of same as flavoring ingredients
FIRMENICH & CIE3 citations60
US4324809AApr 13, 1982
Flavoring with α, β-unsaturated aldehydes
FIRMENICH & CIE2 citations60
US4038429AJul 26, 1977
Enhancing cheese flavor in foods with a diketo-piperazine
FIRMENICH & CIE3 citations60
US4337277AJun 29, 1982
Flavoring with 7-methyl-oct-3-en-2-one
FIRMENICH & CIE1 citations52
US4889735ADec 26, 1989
Furanic esters and their utilization as flavor ingredients
FIRMENICH & CIE1 citations49
US4247572AJan 27, 1981
Flavoring with mixtures of ionones
FIRMENICH & CIE1 citations49
DRAGOCO GERBERDING CO AG
5 patentsUS5892062AApr 6, 1999
Cyclic cedrene acetals, their preparation and their use
DRAGOCO GERBERDING CO AG24 citations92
US6025005AFeb 15, 2000
Aromatic and/or flavor substances
DRAGOCO GERBERDING CO AG10 citations67
US5892059AApr 6, 1999
Process for producing a rose oxide
DRAGOCO GERBERDING CO AG6 citations62
US6306451B1Oct 23, 2001
Fragrance and flavor material
DRAGOCO GERBERDING CO AG0 citations48
US6303173B1Oct 16, 2001
Fragrance and flavor material
DRAGOCO GERBERDING CO AG0 citations48
SYMRISE GMBH & CO KG
5 patentsUS7176176B2Feb 13, 2007
2-methyl-4-phenyl-1,3-dioxolane
SYMRISE GMBH & CO KG14 citations83
US7332468B2Feb 19, 2008
8-tetradecenal as fragrance and flavoring substance
SYMRISE GMBH & CO KG14 citations80
US6734159B2May 11, 2004
Isolongifolenyl ethers, their preparation and their use
SYMRISE GMBH & CO KG8 citations73
US7019181B2Mar 28, 2006
Method for the preparation of trimethylcyclohexyl-alkan-3-ols containing a high proportion of trans isomers
SYMRISE GMBH & CO KG2 citations57
US7754675B2Jul 13, 2010
2-heptylcyclopropyl-1-carboxylic acid
SYMRISE GMBH & CO KG0 citations45