Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5913365 | Method for removing a gravel pack screen | — | 1999-06-22 | $635,406,000 |
| 5868200 | Alternate-path well screen having protected shunt connection | George A. Gillespie, Steven J. Tupy | 1999-02-09 | $244,576,000 |
| 5588487 | Tool for blocking axial flow in gravel-packed well annulus | — | 1996-12-31 | $70,300,000 |
| 4431149 | Geared tab | Mark G. Brislawn, Gerald A. Rayburn | 1984-02-14 |