Robert C. Portnoy
11Patents
6h-index
17Co-inventors
63Inventor score
Filing activity: Jun 9, 1977 → Dec 17, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6231936A | Radiation tolerant polypropylene and its useful articles | Emerging Cross-Sectional Technologies | 95 | Expired |
| US4614235A | Use of mono and polyalkylene glycol ethers as agents for the release of differentially stuck drill pipe | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4480693A | Fluid loss control in oil field cements | Chemistry; Metallurgy | 24 | Expired |
| US4680128A | Anionic copolymers for improved control of drilling fluid rheology | Chemistry; Metallurgy | 15 | Expired |
| US4659750A | Fluid loss control in oil field cements | Chemistry; Metallurgy | 8 | Expired |
| USH751H | Method of inhibiting acid corrosion of ferrous metals | General | 8 | Active |
| US8143352B2 | Process for fluid phase in-line blending of polymers | Chemistry; Metallurgy | 6 | Active |
| US4113724A | Arylthiodicyanopyrazines as plant disease control agents | Human Necessities | 5 | Expired |
| US4455429A | Oxazolines of 2-(alkylthio)succinic acids as an additive for drilling muds | Chemistry; Metallurgy | 2 | Expired |
| US4431551A | Oxazolines of 2-(alkylthio)succinic acids as an additive for drilling muds | Chemistry; Metallurgy | 1 | Expired |
| US4497807A | Thiadiazinone plant disease control agents | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.