Kamper; Friedhelm

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kamper; Friedhelm.The latest application filed is for "process for producing isocyanates".

Company Profile

0.5.9

Kamper; Friedhelm - Krefeld N/A 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
Processes for the production of chlorine from hydrogen chloride and oxygen Grant 9,447,510 - Weber , et al. September 20, 2	2016-09-20
Process for producing isocyanates Grant 8,153,838 - Bulan , et al. April 10, 2	2012-04-10
Process For Producing Isocyanates App 20090166180 - Bulan; Andreas ; et al.	2009-07-02
Processes For The Production Of Chlorine From Hydrogen Chloride And Oxygen App 20080029404 - Weber; Rainer ; et al.	2008-02-07
Processes For Separating Chlorine From A Gas Stream Containing Chlorine, Oxygen And Carbon Dioxide App 20070277551 - Kamper; Friedhelm	2007-12-06
Processes For Absorbing Chlorine From A Gas Containing Chlorine And Carbon Dioxide App 20070269358 - Kamper; Friedhelm ; et al.	2007-11-22
Process for the coupled production of chlorline and isocyanates App 20070265466 - Dugal; Markus ; et al.	2007-11-15
Process for producing isocyanates App 20070012577 - Bulan; Andreas ; et al.	2007-01-18
Process for the production of polyisocyanates of the diphenylmethane series with a reduced color value Grant 6,720,455 - Hagen , et al. April 13, 2	2004-04-13
Process for the preparation of polyisocyanates of the diphenylmethane group having a reduced color value App 20040002579 - Hagen, Torsten ; et al.	2004-01-01
Process for producing polyisocyanates of the diphenyl methane series having a reduced color value Grant 6,639,102 - Hagen , et al. October 28, 2	2003-10-28
Process For Producing Polyisocyanates Of The Diphenyl Methane Series Having A Reduced Color Value App 20030176626 - Hagen, Torsten ; et al.	2003-09-18
Process for the production of polyisocyanates of the diphenylmethane series witha reduced color value App 20030045745 - Hagen, Torsten ; et al.	2003-03-06

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.