Barbara R. Regan

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Glenview, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing water-absorbing resins
- Patent number 4,985,518
- Issue date Jan 15, 1991
- American Colloid Company
- William Alexander
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Surface treated absorbent polymers
- Patent number 4,824,901
- Issue date Apr 25, 1989
- American Colloid Company
- William Alexander
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water absorbent resins prepared by polymerization in the presence o...
- Patent number 4,820,773
- Issue date Apr 11, 1989
- American Colloid Company
- William Alexander
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Surface treated absorbent polymers
- Patent number 4,755,562
- Issue date Jul 5, 1988
- American Colloid Company
- William Alexander
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water absorbent styrene-acrylic acid copolymers
- Patent number 4,677,174
- Issue date Jun 30, 1987
- American Colloid Company
- William Alexander
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE