Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031536 | High temperature and pressure igniter for downhole percussion coring guns | Martin L. Tomek | 1991-07-16 |
| 4998477 | Detonation transfer apparatus for initiating detonation of an insensitive detonating cord utilizing an initiating compound, flyer and shock reflector | — | 1991-03-12 |
| 4979576 | Percussion core gun construction and cable arrangement | Martin L. Tomek | 1990-12-25 |
| 4944225 | Method and apparatus for firing exploding foil initiators over long firing lines | — | 1990-07-31 |
| 4920883 | Detonation transfer methods and apparatus | — | 1990-05-01 |
| 4786462 | Support structure for a nuclear reactor | George Garabedian, Robert A. DeLuca, George A. Gurnis, William C. Craig | 1988-11-22 |
| 4777878 | Exploding bridge wire detonator with shock reflector for oil well usage | James Johnson, Starlin M. Reid | 1988-10-18 |
| 4771827 | Automatic drop-off device for perforating guns | Timothy Miller | 1988-09-20 |
| 4762067 | Downhole perforating method and apparatus using secondary explosive detonators | Larry Grigar, Dennis E. Schramek, Starlin M. Reid, Cyril R. Sumner | 1988-08-09 |
| 4759291 | Through bulkhead explosive initiator for oil well usage | Larry Grigar, Dennis E. Schramek | 1988-07-26 |
| 4693308 | Tubing conveyed perforating safety anchor | Robert R. Luke | 1987-09-15 |
| 4678044 | Tubing pressure operated initiator for perforating in a well borehole | Robert R. Luke, Michael Lee Smith, Larry Grigar, Carl B. Miller | 1987-07-07 |
| 4671356 | Through tubing bridge plug and method of installation | Harold V. Bratt | 1987-06-09 |
| 4532989 | Valved plug for packer | — | 1985-08-06 |
| 4436150 | Bridge plug | — | 1984-03-13 |