Wenke; Gottfried

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wenke; Gottfried.The latest application filed is for "novel couplers for use in oxidative hair dyeing".

Company Profile

0.11.2

Wenke; Gottfried - Woodbridge CT
Wenke; Gottfried - Woodridge CT

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Couplers for use in oxidative hair dyeing Grant 6,855,174 - Lim , et al. February 15, 2	2005-02-15
Novel couplers for use in oxidative hair dyeing App 20040204583 - Lim, Mu-Ill ; et al.	2004-10-14
Couplers for use in oxidative hair dyeing Grant 6,750,337 - Lim , et al. June 15, 2	2004-06-15
Novel couplers for use in oxidative hair dyeing App 20020144361 - Lim, Mu-lll ; et al.	2002-10-10
Oxidation hair dyeing systems and process for providing more equalized coloration on new and old growth hair Grant 6,379,399 - Wenke , et al. April 30, 2	2002-04-30
Melanoquaternary compounds and their use as hair dyes and for skin treatment Grant 5,702,712 - Wenke , et al. December 30, 1	1997-12-30
Synthesis of quaternary melanin compounds and their use as hair dyes or for skin treatment Grant 5,686,084 - Wenke , et al. November 11, 1	1997-11-11
Erasable hair dyeing process Grant 5,474,578 - Chan , et al. December 12, 1	1995-12-12
Process and kit for post-oxidative treatment of permanently dyed hair Grant 5,441,542 - Prota , et al. August 15, 1	1995-08-15
Oxidative hair dyeing method, composition, and kit utilizing hydroxyl substituted benzothiazines Grant 5,374,288 - Prota , et al. December 20, 1	1994-12-20
Use of metal salts and chelates together with chlorites as oxidants in hair coloring Grant 5,368,610 - Chan , et al. November 29, 1	1994-11-29
Oxidative hair dyeing process with catalytic pretreatment Grant 5,316,551 - Wenke May 31, 1	1994-05-31
Process and kit for dyeing hair Grant 5,273,550 - Prota , et al. December 28, 1	1993-12-28

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