Inventor
PHELPS MARTHA A
US6 patents
⚠️ This page may combine multiple inventors who share the name “PHELPS MARTHA A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HI TEK POLYMERS INC
4 patentsUS4941537AJul 17, 1990
Method for reducing the viscosity of aqueous fluid
HI TEK POLYMERS INC33 citations88
US4973637ANov 27, 1990
Polymers made from quaternary ammonium acrylic monomers
HI TEK POLYMERS INC9 citations71
US4647385AMar 3, 1987
Reduction of viscosity of aqueous fluids
HI TEK POLYMERS INC17 citations71
US4918228AApr 17, 1990
Quaternary ammonium acrylic monomers and alcohol soluble polymers made therefrom
HI TEK POLYMERS INC2 citations60