Friedrich Engelhardt

Person

Frankfurt, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Stabilized aqueous polymer compositions and their use
- Patent number 8,962,715
- Issue date Feb 24, 2015
- Tougas Oilfield Solutions GmbH
- Friedrich Engelhardt
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Hydrogels absorbing aqueous fluids
- Patent number 8,552,071
- Issue date Oct 8, 2013
- BASF SE
- Thomas Daniel
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Stabilized aqueous polymer compositions
- Patent number 7,842,741
- Issue date Nov 30, 2010
- Allessa Chemie GmbH
- Friedrich Engelhardt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Plasticized superabsorbent polymer sheets and use thereof in hygien...
- Patent number 7,662,460
- Issue date Feb 16, 2010
- BASF Aktiengesellschaft
- Norbert Herfert
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Polymer mixtures with improved odor control
- Patent number 7,132,479
- Issue date Nov 7, 2006
- BASF Aktiengesellschaft
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Mechanically stable hydrogel-forming polymers
- Patent number 6,414,214
- Issue date Jul 2, 2002
- BASF Aktiengesellschaft
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for modifying hydrophilic polymers
- Patent number 6,300,423
- Issue date Oct 9, 2001
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrophilic, swellable graft polymers
- Patent number 5,489,647
- Issue date Feb 6, 1996
- Cassella Aktiengesellschaft
- Ulrich Kussmaul
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hydrophilic, highly swellable hydrogels
- Patent number 5,331,059
- Issue date Jul 19, 1994
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hydrophilic, swellable polymers
- Patent number 5,236,965
- Issue date Aug 17, 1993
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hydrophilic, swellable polymers
- Patent number 5,214,075
- Issue date May 25, 1993
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hydrophilic, swellable polymers
- Patent number 5,182,312
- Issue date Jan 26, 1993
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Use of hydrocarbon-rich gels as fracturing fluids
- Patent number 5,082,059
- Issue date Jan 21, 1992
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Alkenyl-phosphonic and -phosphinic esters, process for their prepar...
- Patent number 5,068,298
- Issue date Nov 26, 1991
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Alkenylphosphonic and --phosphinic acid esters, process for their p...
- Patent number 5,066,745
- Issue date Nov 19, 1991
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hydrophilic, swellable graft copolymers, their preparation and use
- Patent number 5,041,496
- Issue date Aug 20, 1991
- Cassella AG.
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hydrophilic swellable graft copolymers, their preparation and use
- Patent number 5,011,892
- Issue date Apr 30, 1991
- Cassella AG.
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Alkenylphosphonic and -phosphinic acid esters, process for their pr...
- Patent number 4,959,441
- Issue date Sep 25, 1990
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hydrophilic swellable graft polymers from maleic anhydride-alkylene...
- Patent number 4,931,497
- Issue date Jun 5, 1990
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for the preparation of a hydrogel which is largely free fro...
- Patent number 4,794,166
- Issue date Dec 27, 1988
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of copolymers of vinylphosphonic acid a...
- Patent number 4,749,758
- Issue date Jun 7, 1988
- Hoechst Aktiengesellschaft
- Walter Dursch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water-soluble copolymers with pendant phosphonic, sulphonic and ami...
- Patent number 4,743,666
- Issue date May 10, 1988
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Water-soluble polycoesters, process for their preparation, and thei...
- Patent number 4,736,014
- Issue date Apr 5, 1988
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for the preparation of copolymers
- Patent number 4,722,958
- Issue date Feb 2, 1988
- Cassella Aktiengesellschaft
- Josef Sauer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for the preparation of polymers of vinylphosphonic acid in...
- Patent number 4,696,987
- Issue date Sep 29, 1987
- Hoechst Aktiengesellschaft
- Walter Dursch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Copolymer, a process for its preparation and its use as enzyme supp...
- Patent number 4,686,243
- Issue date Aug 11, 1987
- Hoechst Aktiengesellschaft
- Karl-Heinz Keil
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Cement slurries for deep holes, with a copolymer content for reduci...
- Patent number 4,587,283
- Issue date May 6, 1986
- Hoechst Aktiengesellschaft
- Martin Hille
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Phosphonic acid cross-linked hydrophilic copolymers
- Patent number 4,585,845
- Issue date Apr 29, 1986
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Water soluble copolymers
- Patent number 4,551,513
- Issue date Nov 5, 1985
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
High molecular weight water-soluble polymers useful in deoiling san...
- Patent number 4,521,579
- Issue date Jun 4, 1985
- Cassella Aktiengesellschaft
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Stabilized aqueous polymer compositions and their use
- Publication number 20100075871
- Publication date Mar 25, 2010
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Stabilized aqueous polymer compositions
- Publication number 20090192055
- Publication date Jul 30, 2009
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Plasticized superabsorbent polymer sheets and use thereof in hygien...
- Publication number 20050153123
- Publication date Jul 14, 2005
- Norbert Herfert
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Polymer mixtures with improved odor control
- Publication number 20050154133
- Publication date Jul 14, 2005
- Friedrich Engelhardt
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Friedrich Engelhardt

Person

Patents Grantslast 30 patents

Stabilized aqueous polymer compositions and their use

Hydrogels absorbing aqueous fluids

Stabilized aqueous polymer compositions

Plasticized superabsorbent polymer sheets and use thereof in hygien...

Polymer mixtures with improved odor control

Mechanically stable hydrogel-forming polymers

Process for modifying hydrophilic polymers

Hydrophilic, swellable graft polymers

Hydrophilic, highly swellable hydrogels

Hydrophilic, swellable polymers

Hydrophilic, swellable polymers

Hydrophilic, swellable polymers

Use of hydrocarbon-rich gels as fracturing fluids

Alkenyl-phosphonic and -phosphinic esters, process for their prepar...

Alkenylphosphonic and --phosphinic acid esters, process for their p...

Hydrophilic, swellable graft copolymers, their preparation and use

Hydrophilic swellable graft copolymers, their preparation and use

Alkenylphosphonic and -phosphinic acid esters, process for their pr...

Hydrophilic swellable graft polymers from maleic anhydride-alkylene...

Process for the preparation of a hydrogel which is largely free fro...

Process for the preparation of copolymers of vinylphosphonic acid a...

Water-soluble copolymers with pendant phosphonic, sulphonic and ami...

Water-soluble polycoesters, process for their preparation, and thei...

Process for the preparation of copolymers

Process for the preparation of polymers of vinylphosphonic acid in...

Copolymer, a process for its preparation and its use as enzyme supp...

Cement slurries for deep holes, with a copolymer content for reduci...

Phosphonic acid cross-linked hydrophilic copolymers

Water soluble copolymers

High molecular weight water-soluble polymers useful in deoiling san...

Patents Applicationslast 30 patents

Stabilized aqueous polymer compositions and their use

Stabilized aqueous polymer compositions

Plasticized superabsorbent polymer sheets and use thereof in hygien...

Polymer mixtures with improved odor control