Gropper; Hans

Patent Applications and Registrations

Patent applications and USPTO patent grants for Gropper; Hans.The latest application filed is for "phillips catalyst and its use for the preparation of ethylene homopolymers and copolymers".

Company Profile

0.11.0

Gropper; Hans - Limburgerhof DE
Gropper; Hans - Ludwigshafen DE
Gropper; Hans - 6703 Ludwigshafen 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
Phillips catalyst and its use for the preparation of ethylene homopolymers and copolymers Grant 5,352,658 - Evertz , et al. October 4, 1	1994-10-04
Process for the preparation of a supported catalyst for the polymerization of .alpha.-olefins Grant 5,310,712 - Funk , et al. May 10, 1	1994-05-10
Peroxide-free grafting of homopolymers and copolymers of ethylene having densities equal to or greater than 0.930 g/cm3, and use of the graft copolymers for the preparation of ionomers of adhesion promoters Grant 5,194,509 - Hasenbein , et al. * March 16, 1	1993-03-16
Catalyst for the preparation of high molecular weight homopolymers and copolymers of ethene, and the manufacture thereof Grant 5,189,123 - Gropper , et al. February 23, 1	1993-02-23
Preparation of homopolymers and copolymers of ethene by Phillips catalysis Grant 4,728,703 - Konrad , et al. March 1, 1	1988-03-01
Preparation of homopolymers of ethene and copolymers of ethene with higher.alpha.-monolefins using a Ziegler catalyst system Grant 4,710,552 - Bachl , et al. December 1, 1	1987-12-01
Process for letting down ethylene high pressure polymerization systems Grant 4,115,638 - Becker , et al. September 19, 1	1978-09-19
Manufacture of ethylene polymers in a two-zone tubular reactor at pressure above 500 bars Grant 4,076,919 - Urban , et al. February 28, 1	1978-02-28
Manufacture of copolymers of ethylene Grant 4,048,411 - Mietzner , et al. September 13, 1	1977-09-13
Production Of Homopolymers Or Copolymers Of Ethylene Grant 3,714,135 - Pfannmueller , et al. January 30, 1	1973-01-30
Production Of Polyethylene By The High Pressure Process Using A Mixture Of Tertiary Butyl Hydroperoxide And Oxygen As The Initiator Grant 3,691,145 - Gierth , et al. September 12, 1	1972-09-12

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.