Catalin Ivan
18Patents
6h-index
23Co-inventors
62Inventor score
Filing activity: Jun 5, 2003 → Sep 20, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7497954B2 | Apparatus for separation of water from oil-based drilling fluid and advanced water treatment | Chemistry; Metallurgy | 27 | Active |
| US8128827B2 | Modular oil-based sludge separation and treatment system | Chemistry; Metallurgy | 11 | Active |
| US7514005B2 | Method of processing drilling fluid | Chemistry; Metallurgy | 8 | Active |
| US8839859B2 | Water absorbing polymers for treatment of brines and water-based drilling fluids | Performing Operations; Transporting | 7 | Active |
| US8271246B2 | System and method for minimizing lost circulation | Fixed Constructions | 7 | Active |
| US7736497B2 | Dewatering system | Emerging Cross-Sectional Technologies | 6 | Active |
| US8728281B2 | Treatment of hydrocarbon fluids with ozone | Fixed Constructions | 5 | Active |
| US7098172B1 | Prevention and treatment of lost circulation with crosslinked polymer material | Chemistry; Metallurgy | 5 | Expired |
| US7686933B2 | Method and apparatus for purifying an oil-based fluid | Chemistry; Metallurgy | 4 | Expired |
| US7867376B2 | Treatment of hydrocarbon fluids with ozone | Fixed Constructions | 3 | Active |
| US7878218B2 | High viscosity fluid transfer apparatus | Emerging Cross-Sectional Technologies | 2 | Active |
| US7959012B2 | Oil-based sludge separation and treatment system | Chemistry; Metallurgy | 1 | Active |
| US11719056B2 | Identifying downhole conditions during a drilling operation using a vibratory separator | Physics | 1 | Active |
| US7735378B2 | Method to measure flow line return fluid density and flow rate | Fixed Constructions | 1 | Active |
| US8002991B2 | Dewatering method | Emerging Cross-Sectional Technologies | 1 | Active |
| US11814932B2 | Method of attenuating annular pressure buildup using compressible particles | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US7455783B2 | Method for centrifugal separation enhancement | Emerging Cross-Sectional Technologies | 0 | Active |
| US8177959B2 | Treatment of hydrocarbon fluids with ozone | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.