Inventor · disambiguated record
Wilhelm Pickenhagen
Also filed as: PICKENHAGEN WILHELM
23 granted patents·6 pending applications·287 citations·filing 1976–2015
95Inventor score
Files withFIRMENICH & CIE10DRAGOCO GERBERDING CO AG5SYMRISE GMBH & CO KG5DRAGOCO GERBERDING & CO A G1DRAGOCO GERBERDING & CO KG1
Top patents by PatentIndex Score
29 records- 0195US4088649AProcess for preparing a diketo-piperazineFIRMENICH & CIE·Filed 1977·Granted May 9, 1978·53 cites·3 claims
- 0293US4006261AFlavoring with mixtures of theobromine and cyclic dipeptidesFIRMENICH & CIE·Filed 1976·Granted Feb 1, 1977·65 cites·6 claims
- 0387US7176176B22-methyl-4-phenyl-1,3-dioxolaneSYMRISE GMBH & CO KG·Filed 2003·Granted Feb 13, 2007·14 cites·1 claims
- 0484US4933281AMethod for producing rhamnoseUNIV IOWA RES FOUND·Filed 1987·Granted Jun 12, 1990·44 cites·33 claims
- 0579US5892062ACyclic cedrene acetals, their preparation and their useDRAGOCO GERBERDING CO AG·Filed 1998·Granted Apr 6, 1999·24 cites·3 claims
- 0677US7332468B28-tetradecenal as fragrance and flavoring substanceSYMRISE GMBH & CO KG·Filed 2002·Granted Feb 19, 2008·14 cites·11 claims
- 0775US6734159B2Isolongifolenyl ethers, their preparation and their useSYMRISE GMBH & CO KG·Filed 2003·Granted May 11, 2004·8 cites·13 claims
- 0862US7019181B2Method for the preparation of trimethylcyclohexyl-alkan-3-ols containing a high proportion of trans isomersSYMRISE GMBH & CO KG·Filed 2003·Granted Mar 28, 2006·2 cites·11 claims
- 0957US2007027060A12-methyl-4-pheny1-1,3-dioxolanePICKENHAGEN WILHELM·Filed 2006·Application pending·0 cites
- 1056US5892059AProcess for producing a rose oxideDRAGOCO GERBERDING CO AG·Filed 1997·Granted Apr 6, 1999·6 cites·15 claims
- 1155US6063367AProtein extract from cereal gluten, preparation thereof and use thereof in hair careDRAGOCO GERBERDING & CO A G·Filed 1998·Granted May 16, 2000·20 cites·12 claims
- 1251US4387248Aα,β-Unsaturated aldehydes and use of same as flavoring ingredientsFIRMENICH & CIE·Filed 1981·Granted Jun 7, 1983·3 cites·1 claims
- 1351US4374051AUtilization of nitrogen containing heterocyclic derivatives as perfume ingredientsFIRMENICH & CIE·Filed 1981·Granted Feb 15, 1983·7 cites·3 claims
- 1447US6025005AAromatic and/or flavor substancesDRAGOCO GERBERDING CO AG·Filed 1997·Granted Feb 15, 2000·10 cites·16 claims
- 1546US2001004457A12-methyl-4-pheny1-1,3-dioxolaneFiled 2000·Application pending·0 cites
- 1645US7754675B22-heptylcyclopropyl-1-carboxylic acidSYMRISE GMBH & CO KG·Filed 2003·Granted Jul 13, 2010·0 cites·20 claims
- 1745US2002040167A1Isolongifolenyl ethers, their preparation and their useFiled 2001·Application pending·0 cites
- 1840US6231912B1Organoleptic substancesDRAGOCO GERBERDING & CO KG·Filed 1998·Granted May 15, 2001·6 cites·16 claims
- 1940US2016040096A1Perfume systemsPROCTER & GAMBLE·Filed 2015·Application pending·0 cites
- 2039US4889735AFuranic esters and their utilization as flavor ingredientsFIRMENICH & CIE·Filed 1988·Granted Dec 26, 1989·1 cites·5 claims
- 2137US2003083225A1Organolipic substanceFiled 2002·Application pending·0 cites
- 2236US4283433AFlavoring with α,β-unsaturated aldehydesFIRMENICH & CIE·Filed 1979·Granted Aug 11, 1981·3 cites·4 claims
- 2334US2004186042A1Iso-$g(b)-bisabolol as fragrance and aroma substanceFiled 2002·Application pending·0 cites
- 2432US6303173B1Fragrance and flavor materialDRAGOCO GERBERDING CO AG·Filed 1999·Granted Oct 16, 2001·0 cites·5 claims
- 2532US4038429AEnhancing cheese flavor in foods with a diketo-piperazineFIRMENICH & CIE·Filed 1976·Granted Jul 26, 1977·3 cites·3 claims
- 2631US4324809AFlavoring with α, β-unsaturated aldehydesFIRMENICH & CIE·Filed 1979·Granted Apr 13, 1982·2 cites·6 claims
- 2730US4337277AFlavoring with 7-methyl-oct-3-en-2-oneFIRMENICH & CIE·Filed 1980·Granted Jun 29, 1982·1 cites·4 claims
- 2829US6306451B1Fragrance and flavor materialDRAGOCO GERBERDING CO AG·Filed 1999·Granted Oct 23, 2001·0 cites·7 claims
- 2928US4247572AFlavoring with mixtures of iononesFIRMENICH & CIE·Filed 1979·Granted Jan 27, 1981·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →