Niederprum; Hans

Patent Applications and Registrations

Patent applications and USPTO patent grants for Niederprum; Hans.The latest application filed is for "process for the production of siliconfunctional polyorganosiloxanes".

Company Profile

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Niederprum; Hans - Monheim DE
Niederprum; Hans - Duesseldorf DT
Niederprum; Hans - Leverkusen DT

*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
Process for the production of siliconfunctional polyorganosiloxanes Grant 4,260,715 - de Montigny , et al. April 7, 1	1981-04-07
1,1,1-Trifluoro-2-chloroethane as blowing agent for polyurethane foam Grant 4,177,332 - Mitschke , et al. December 4, 1	1979-12-04
Process for the preparation of a chrome tanning agent and Glauber's salt Grant 4,168,240 - Bockelmann , et al. September 18, 1	1979-09-18
Production of tetraethyl ammonium perfluoroalkyl sulphonate Grant 4,168,277 - Mitschke , et al. September 18, 1	1979-09-18
Disintegration of silica-rich chromite Grant 4,112,046 - Niederprum , et al. September 5, 1	1978-09-05
Alkaline disintegration of chromites Grant 4,066,734 - Bockelmann , et al. January 3, 1	1978-01-03
Etching glass with HF and fluorine-containing surfactant Grant 4,055,458 - Niederprum , et al. October 25, 1	1977-10-25
Use of perfluoroalkanesulphonic acid amides and/or cyclimmonium salts of perfluoroalkansulphonic acids as mold release agents Grant 4,007,150 - Adelmann , et al. February 8, 1	1977-02-08
Preparation of perfluorinated organic sulfonyl fluorides Grant 3,951,762 - Voss , et al. April 20, 1	1976-04-20
Flame-resistant high molecular weight linear polyesters Grant 3,879,351 - Rosendahl , et al. April 22, 1	1975-04-22
Perfluoroalkyl Substituted Quaternary Ammonium Salts Grant 3,723,512 - Niederprum , et al. March 27, 1	1973-03-27
Process For The Manufacture Of Perfluoralkylsulphonyl Fluorides Grant 3,623,963 - Voss , et al. November 30, 1	1971-11-30

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