Douglas Espin
12Patents
8h-index
24Co-inventors
68Inventor score
Filing activity: Jul 20, 2000 → Jun 9, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6607036B2 | Method for heating subterranean formation, particularly for heating reservoir fluids in near well bore zone | Emerging Cross-Sectional Technologies | 66 | Expired |
| US6579572B2 | Water-based system for altering wettability of porous media | Emerging Cross-Sectional Technologies | 48 | Expired |
| US6447577B1 | Method for removing H2S and CO2 from crude and gas streams | Chemistry; Metallurgy | 26 | Expired |
| US6740141B2 | Method for removing H2S and CO2 from above ground hydrocarbon streams | Chemistry; Metallurgy | 24 | Expired |
| US6579832B2 | Method for treating drilling fluid using nanoparticles | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6481501B2 | Method and apparatus for drilling and completing a well | Fixed Constructions | 16 | Expired |
| US6513592B2 | Method for consolidation of sand formations using nanoparticles | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6360823B1 | Apparatus and method for performing downhole measurements | Fixed Constructions | 10 | Expired |
| US6554070B2 | Composition and method for sealing an annular space between a well bore and a casing | Emerging Cross-Sectional Technologies | 7 | Expired |
| US9040154B2 | Magnetic composite particles | Emerging Cross-Sectional Technologies | 3 | Active |
| US11084984B2 | Processes and systems for improvement of heavy crude oil using induction heating | Chemistry; Metallurgy | 0 | Active |
| US11427716B2 | Highly structured composite material and process for the manufacture of protective coatings for corroding substrates | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.