Harold O. Treece
10Patents
6h-index
15Co-inventors
63Inventor score
Filing activity: Dec 13, 1979 → Oct 25, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6622798B1 | Method and apparatus for maintaining a fluid column in a wellbore annulus | Fixed Constructions | 61 | Expired |
| US6196311A | Universal cementing plug | Fixed Constructions | 41 | Expired |
| US7775290B2 | Apparatus for radially expanding and plastically deforming a tubular member | Fixed Constructions | 18 | Expired |
| US4683955A | Automatic fill-up floating apparatus | Fixed Constructions | 15 | Expired |
| US7546881B2 | Apparatus for radially expanding and plastically deforming a tubular member | Fixed Constructions | 15 | Active |
| US4337010A | Inflatable grout seal | Fixed Constructions | 9 | Expired |
| US4412559A | Dog locking sleeve | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| USRE41508E1 | Universal cementing plug | General | 4 | Expired |
| USRE41117E1 | Universal cementing plug | General | 1 | Expired |
| USRE42137E1 | Universal cementing plug | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.