Wichelhaus, Winfried

Patent Applications and Registrations

Patent applications and USPTO patent grants for Wichelhaus, Winfried.The latest application filed is for "method for providing metal surfaces with protection against corrosion".

Company Profile

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Wichelhaus, Winfried - Wuelfrath DE
Wichelhaus; Winfried - Mettmann DE
Wichelhaus; Winfried - Ingelheim am Rhein DE

*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
Method for providing metal surfaces with protection against corrosion App 20030150524 - Wichelhaus, Winfried ; et al.	2003-08-14
Conductive organic coatings Grant 6,479,103 - Wichelhaus , et al. November 12, 2	2002-11-12
Phosphating process with a copper-containing re-rinsing stage Grant 6,090,224 - Wichelhaus , et al. July 18, 2	2000-07-18
Water-based drilling and well-servicing fluids with swellable, synthetic layer silicates Grant 4,888,120 - Mueller , et al. December 19, 1	1989-12-19
Porous layer silicate/sodium sulfate agglomerate Grant 4,861,510 - Wilms , et al. August 29, 1	1989-08-29
Laundry pretreatment composition for oily and greasy soil Grant 4,861,516 - Kurzendoerfer , et al. August 29, 1	1989-08-29
Fabric-softening detergent Grant 4,846,990 - Upadek , et al. July 11, 1	1989-07-11
Process for filtering liquors used in dry cleaning Grant 4,774,004 - Gruenewaelder , et al. September 27, 1	1988-09-27
Layered silicates of limited swelling power, a process for their production and their use in detergents and cleaning preparations Grant 4,737,306 - Wichelhaus , et al. April 12, 1	1988-04-12
Process for the production of thermodynamically stable solid ion conductor materials Grant 4,526,855 - Hartwig , et al. * July 2, 1	1985-07-02
Process for the production of thermodynamically stable solid ion conductor materials Grant 4,386,020 - Hartwig , et al. May 31, 1	1983-05-31

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