Douglas Hillshafer

Person

Western Springs, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Polyester diverting agents for low-temperature oil wells
- Patent number 11,898,096
- Issue date Feb 13, 2024
- Stepan Company
- Douglas Kip Hillshafer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for producing ο-phthalate polyester polyols with low cyclic...
- Patent number 9,487,467
- Issue date Nov 8, 2016
- Stepan Company
- Douglas Hillshafer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Multi-arm hydrophilic urethane polymers, methods of making them, an...
- Patent number 9,284,518
- Issue date Mar 15, 2016
- Stepan Company
- Ronald Anthony Masters
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Phthalic anhydride based polyester-ether polyols and urethane prepo...
- Patent number 6,569,352
- Issue date May 27, 2003
- Stepan Company
- Douglas K. Hillshafer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
POLYESTER DIVERTING AGENTS FOR LOW-TEMPERATURE OIL WELLS
- Publication number 20240141225
- Publication date May 2, 2024
- Stepan Company
- Douglas Kip HILLSHAFER
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLYESTER DIVERTING AGENTS FOR LOW-TEMPERATURE OIL WELLS
- Publication number 20220251441
- Publication date Aug 11, 2022
- Stepan Company
- Douglas Kip HILLSHAFER
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MULTI-ARM HYDROPHILIC URETHANE POLYMERS, METHODS OF MAKING THEM, AN...
- Publication number 20140038874
- Publication date Feb 6, 2014
- Ronald Anthony Masters
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
METHOD FOR PRODUCING o-PHTHALATE POLYESTER POLYOLS WITH LOW CYCLIC...
- Publication number 20140018458
- Publication date Jan 16, 2014
- Stepan Company
- Douglas Hillshafer
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Prepolymer containing a Liquid Hardness Agent For Open Cell Foams
- Publication number 20080269367
- Publication date Oct 30, 2008
- Paul L. Neill
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Phthalic Anhydride Based Polyester-Ether Polyols and Double Metal C...
- Publication number 20080108719
- Publication date May 8, 2008
- Eric J. Geiger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Liquid hardness agent for open cell foams
- Publication number 20060169948
- Publication date Aug 3, 2006
- Paul L. Neill
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Phthalic anhydride based polyester-ether polyols and double metal c...
- Publication number 20060135637
- Publication date Jun 22, 2006
- Douglas K. Hillshafer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Phthalic anhydride based polyester-ether polyols and double metal c...
- Publication number 20050085658
- Publication date Apr 21, 2005
- Eric J. Geiger
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Liquid hardness agent for open cell foams
- Publication number 20040259967
- Publication date Dec 23, 2004
- Paul L. Neill
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Douglas Hillshafer

Person

Patents Grantslast 30 patents

Polyester diverting agents for low-temperature oil wells

Method for producing ο-phthalate polyester polyols with low cyclic...

Multi-arm hydrophilic urethane polymers, methods of making them, an...

Phthalic anhydride based polyester-ether polyols and urethane prepo...

Patents Applicationslast 30 patents

POLYESTER DIVERTING AGENTS FOR LOW-TEMPERATURE OIL WELLS

POLYESTER DIVERTING AGENTS FOR LOW-TEMPERATURE OIL WELLS

MULTI-ARM HYDROPHILIC URETHANE POLYMERS, METHODS OF MAKING THEM, AN...

METHOD FOR PRODUCING o-PHTHALATE POLYESTER POLYOLS WITH LOW CYCLIC...

Prepolymer containing a Liquid Hardness Agent For Open Cell Foams

Phthalic Anhydride Based Polyester-Ether Polyols and Double Metal C...

Liquid hardness agent for open cell foams

Phthalic anhydride based polyester-ether polyols and double metal c...

Phthalic anhydride based polyester-ether polyols and double metal c...

Liquid hardness agent for open cell foams