Inventor
PORTNOY ROBERT C
US9 patents
⚠️ This page may combine multiple inventors who share the name “PORTNOY ROBERT C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EXXON CHEMICAL PATENTS INC
4 patentsUS6231936B1May 15, 2001
Radiation tolerant polypropylene and its useful articles
EXXON CHEMICAL PATENTS INC149 citations93
US4680128AJul 14, 1987
Anionic copolymers for improved control of drilling fluid rheology
EXXON CHEMICAL PATENTS INC30 citations91
US4614235ASep 30, 1986
Use of mono and polyalkylene glycol ethers as agents for the release of differentially stuck drill pipe
EXXON CHEMICAL PATENTS INC72 citations91
US4659750AApr 21, 1987
Fluid loss control in oil field cements
EXXON CHEMICAL PATENTS INC17 citations72
EXXON RESEARCH ENGINEERING CO
3 patentsUS4480693ANov 6, 1984
Fluid loss control in oil field cements
EXXON RESEARCH ENGINEERING CO41 citations92
US4431551AFeb 14, 1984
Oxazolines of 2-(alkylthio)succinic acids as an additive for drilling muds
EXXON RESEARCH ENGINEERING CO3 citations62
US4455429AJun 19, 1984
Oxazolines of 2-(alkylthio)succinic acids as an additive for drilling muds
EXXON RESEARCH ENGINEERING CO4 citations58