David Ewert
7Patents
7h-index
16Co-inventors
56Inventor score
Filing activity: Jan 8, 1991 → Jul 3, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5121795A | Squeeze cementing | Emerging Cross-Sectional Technologies | 221 | Expired |
| US5127473A | Repair of microannuli and cement sheath | Chemistry; Metallurgy | 204 | Expired |
| US5123487A | Repairing leaks in casings | Fixed Constructions | 196 | Expired |
| US6488089B1 | Methods of plugging wells | Chemistry; Metallurgy | 38 | Expired |
| US7398680B2 | Tracking fluid displacement along a wellbore using real time temperature measurements | Fixed Constructions | 29 | Expired |
| US7779683B2 | Tracking fluid displacement along a wellbore using real time temperature measurements | Fixed Constructions | 18 | Active |
| US7730774B2 | Tracking fluid displacement along a wellbore using real time temperature measurements | Fixed Constructions | 10 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.