Engelhardt; Fritz

Patent Applications and Registrations

Patent applications and USPTO patent grants for Engelhardt; Fritz.The latest application filed is for "absorbent article".

Company Profile

0.20.1

Engelhardt; Fritz - Chesapeake VA
Engelhardt, Fritz - Frankfurt DE
Engelhardt; Fritz - Frankfurt am Main 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 the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines Grant 6,657,015 - Riegel , et al. December 2, 2	2003-12-02
Method for producing water-swellable hydorphilic polymers, said polymers and use thereof Grant 6,565,768 - Dentler , et al. May 20, 2	2003-05-20
Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones Grant 6,559,239 - Riegel , et al. May 6, 2	2003-05-06
Absorbent article App 20030045847 - Whitmore, Darryl L. ; et al.	2003-03-06
Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones Grant 6,503,979 - Funk , et al. January 7, 2	2003-01-07
Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones Grant 6,472,478 - Funk , et al. October 29, 2	2002-10-29
Absorbent article and process for preparing an absorbent article Grant 6,417,425 - Whitmore , et al. July 9, 2	2002-07-09
Crosslinked, hydrophilic, highly swellable hydrogels, production thereof and use thereof Grant 6,297,335 - Funk , et al. October 2, 2	2001-10-02
Process for the preparation of hydrophilic hydrogels of high swelling capacity Grant 6,150,477 - Engelhardt , et al. November 21, 2	2000-11-21
Water-swellable, hydrophilic polymer compositions Grant 6,107,432 - Engelhardt , et al. August 22, 2	2000-08-22
Hydrophilic, highly swellable hydrogels Grant 5,840,321 - Engelhardt , et al. November 24, 1	1998-11-24
Hydrophilic, highly swellable hydrogels Grant 5,731,365 - Engelhardt , et al. March 24, 1	1998-03-24
Water-swellable hydrophilic polymers Grant 5,684,104 - Funk , et al. November 4, 1	1997-11-04
Polycondensates containing phosphinic and phosphonic acid groups Grant 5,530,093 - Engelhardt , et al. June 25, 1	1996-06-25
Water-soluble copolymers useful in drilling fluids Grant 5,510,436 - Hille , et al. April 23, 1	1996-04-23
Polycondensates containing phosphinic or phosphonic acid groups and siloxane groups Grant 5,492,995 - Engelhardt , et al. February 20, 1	1996-02-20
Process for the storage and transportation of liquid hydrocarbons Grant 5,276,248 - Engelhardt , et al. January 4, 1	1994-01-04
Methylolated and optionally etherified urethanes containing fluoroalkyl ligands Grant 4,877,540 - Engelhardt , et al. October 31, 1	1989-10-31
Copolymer, process for its preparation, and its use Grant 4,753,999 - Keil , et al. June 28, 1	1988-06-28
Copolymer, a process for its preparation and its use as a sorbent Grant 4,552,905 - Keil , et al. November 12, 1	1985-11-12
Hydrolyzed copolymer of acrylonitrile and an unsaturated sulfonic acid Grant 3,929,740 - Engelhardt , et al. December 30, 1	1975-12-30

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