Martha A. Phelps

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Louisville, KY, US

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Patents Grantslast 30 patents

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Hydrophilic-hydrophobic derivatives of polygalactomannans containin...
- Patent number 5,256,651
- Issue date Oct 26, 1993
- Rhone-Poulenc, Inc.
- Martha A. Phelps
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Polymers made from quaternary ammonium acrylic monomers
- Patent number 4,973,637
- Issue date Nov 27, 1990
- Hi-Tek Polymers, Inc.
- Michael E. Morgan
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for reducing the viscosity of aqueous fluid
- Patent number 4,941,537
- Issue date Jul 17, 1990
- Hi-Tek Polymers, Inc.
- Paul W. Langemeier
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Tertiaryaminoalkyl-hydroxyalkyl ethers of polygalactomannans
- Patent number 4,918,181
- Issue date Apr 17, 1990
- Dennis J. Karcher
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Quaternary ammonium acrylic monomers and alcohol soluble polymers m...
- Patent number 4,918,228
- Issue date Apr 17, 1990
- Hi-Tek Polymers, Inc.
- Michael E. Morgan
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Reduction of viscosity of aqueous fluids
- Patent number 4,647,385
- Issue date Mar 3, 1987
- Hi-Tek Polymers, Inc.
- Martin M. Williams
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...