Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7033504 | Method for recovering water soluble surfactants | George C. Blytas | 2006-04-25 |
| 5746907 | Method to remove metals from residuals | Antonius F. H. Wielers | 1998-05-05 |
| 5648575 | Method for inhibiting the plugging of conduits by gas hydrates | Ulfert Cornelis Klomp, Rene Reijnhart, Anton Jacobus Weisenborn | 1997-07-15 |
| 5460728 | Method for inhibiting the plugging of conduits by gas hydrates | Ulfert Cornelis Klomp, Rene Reijnhart, Anton Jacobus Weisenborn | 1995-10-24 |
| 4996879 | Subsea pipeline leak detection | Robert W. Patterson, Joe Henry Haws | 1991-03-05 |
| 4953144 | Third-party detection around pipelines | Robert Chin, Thomas L. Stewart, Robert W. Patterson, Edward R. Cadena | 1990-08-28 |
| 4920523 | Hydrophone mount | Robert M. Kipp, Edward R. Cadena | 1990-04-24 |
| 4837751 | Shielded hydrophone assembly | Robert M. Kipp, Edward R. Cadena | 1989-06-06 |
| H387 | Wavelength filter for marine seismic cables | Edward R. Cadena | 1987-12-01 |
| 4646837 | Process for removal of wax deposits | — | 1987-03-03 |
| 4510588 | Hydrophone cable decoupler | Robert M. Kipp, Edward R. Cadena | 1985-04-09 |
| 4498932 | Pipeline pig with restricted fluid bypass | — | 1985-02-12 |
| 4383783 | Pipeline gel plug | Joe O. Esparza | 1983-05-17 |
| 4335964 | Injection system for solid friction reducing polymers | Bruce S. Drake | 1982-06-22 |
| 4300218 | Free flooding hydrophone mounting | Albert J. Berni, Lawrence D. Park, Jr., Edward R. Cadena | 1981-11-10 |
| 4281402 | Marine cable decoupler | Charles W. Ruth | 1981-07-28 |
| 4263926 | Injection system for solid friction reducing polymers | Bruce S. Drake | 1981-04-28 |
| 4252465 | Pipeline gel plug | Douglas E. Broussard, Paul Robert Scott | 1981-02-24 |