Inventor · disambiguated record
Martha A. Phelps
Also filed as: PHELPS MARTHA A
6 granted patents·102 citations·filing 1985–1992
84Inventor score
Top patents by PatentIndex Score
6 records- 0177US4941537AMethod for reducing the viscosity of aqueous fluidHI TEK POLYMERS INC·Filed 1989·Granted Jul 17, 1990·33 cites·24 claims
- 0273US5256651AHydrophilic-hydrophobic derivatives of polygalactomannans containing tertiary amine functionalityRHONE POULENC INC·Filed 1992·Granted Oct 26, 1993·35 cites·24 claims
- 0355US4647385AReduction of viscosity of aqueous fluidsHI TEK POLYMERS INC·Filed 1985·Granted Mar 3, 1987·17 cites·7 claims
- 0451US4973637APolymers made from quaternary ammonium acrylic monomersHI TEK POLYMERS INC·Filed 1990·Granted Nov 27, 1990·9 cites·11 claims
- 0539US4918181ATertiaryaminoalkyl-hydroxyalkyl ethers of polygalactomannansKARCHER DENNIS J·Filed 1988·Granted Apr 17, 1990·6 cites·9 claims
- 0631US4918228AQuaternary ammonium acrylic monomers and alcohol soluble polymers made therefromHI TEK POLYMERS INC·Filed 1989·Granted Apr 17, 1990·2 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Martha A. Phelps files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →