Prideco, Inc.
6Patents
0Active
6Granted
26Portfolio score
Filing activity: Apr 29, 1991 → Mar 30, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5165491A | Method of horizontal drilling | Fixed Constructions | 97 | Expired |
| US5184495A | Method of internally and externally upsetting the end of a metal tube | Performing Operations; Transporting | 34 | Expired |
| US5286069A | Stress relief groove for drill pipe | Fixed Constructions | 16 | Expired |
| US5148876A | Lightweight drill pipe | Fixed Constructions | 14 | Expired |
| US5358285A | Stress relief groove for drill pipe | Fixed Constructions | 9 | Expired |
| US5479721A | Method and apparatus for measuring the length (MIU) of the internal taper of an internally upset drill pipe tube | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.