Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5826084 | Microprocessor with circuits, systems, and methods for selectively bypassing external interrupts past the monitor program during virtual program operation | Robert R. Collins, Jonathan H. Shiell | 1998-10-20 |
| 5673760 | Perforating gun including a unique high shot density packing arrangement | Jack F. Lands, Jr., Gary M. Lendermon, Jorge E. Lopez de Cardenas, Robert A. Parrott | 1997-10-07 |
| 5597974 | Shaped charge for a perforating gun having a main body of explosive including TATB and a sensitive primer | Wallace E. Voreck, John R. Eberhardt, Hooshang Rezaie | 1997-01-28 |
| 5505134 | Perforating gun having a plurality of charges including a corresponding plurality of exploding foil or exploding bridgewire initiator apparatus responsive to a pulse of current for simultaneously detonating the plurality of charges | Nolan C. Lerche, Clifford L. Aseltine, Kenneth E. Rozek, Robert A. Parrott | 1996-04-09 |
| 5421418 | Apparatus and method for mixing polyacrylamide with brine in an annulus of a wellbore to prevent a cement-like mixture from fouling wellbore tools | Erik Nelson, Clifford L. Aseltine | 1995-06-06 |
| 5204672 | Keyless entry system | — | 1993-04-20 |
| 5123356 | Transfer apparatus adapted for transferring an explosive train through an externally pressurized secondary explosive bulkhead | Daniel C. Markel | 1992-06-23 |
| 5097945 | Method for safe packaging of shaped charges for transport | — | 1992-03-24 |
| 4805726 | Controlled implosive downhole seismic source | D. T. Taylor | 1989-02-21 |