Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5981283 | Method of tagging hydrocarbon fuels | David K. Anderson, Nicholas Valenti | 1999-11-09 |
| 5885838 | Method of identifying chemicals by use of non-radioactive isotopes | David K. Anderson, Nicholas Valenti | 1999-03-23 |
| 5849590 | Method of chemical tagging | David K. Anderson, Nicholas Valenti | 1998-12-15 |
| 5677187 | Tagging chemical compositions | David K. Anderson, Nicholas Valenti | 1997-10-14 |
| 5677186 | Method of identifying chemicals by use of non-radioactive isotopes | David K. Anderson, Nicholas Valenti | 1997-10-14 |
| 5474937 | Method of identifying chemicals by use of non-radioactive isotopes | David K. Anderson, Nicholas Valenti | 1995-12-12 |
| 5309995 | Well treatment using ball sealers | James R. Bailey, Walter J. Lamb | 1994-05-10 |
| 5083356 | Collar load support tubing running procedure | Joe M. Escobar, Doyle Frederic Boutwell, Jr., Mark Stephen Sibille, Charles Michael Webre | 1992-01-28 |
| 4778008 | Selectively releasable and reengagable expansion joint for subterranean well tubing strings | William Dean Moody, Richard P. Rubbo | 1988-10-18 |
| 4676309 | Linear plane perforator | — | 1987-06-30 |
| 4656944 | Select fire well perforator system and method of operation | — | 1987-04-14 |