Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605195 | Inflation shape control system for inflatable packers | L. Michael McKee, Robert M. Sorem, Kevin L. Case, Jean-Louis Pessin | 1997-02-25 |
| 5507341 | Inflatable packer with bladder shape control | L. Michael McKee, Robert M. Sorem | 1996-04-16 |
| 5439053 | Reinforcing slat for inflatable packer | Robert M. Sorem | 1995-08-08 |
| 5404947 | Pre-formed stress rings for inflatable packers | Robert M. Sorem | 1995-04-11 |
| 5398755 | Stress rings for inflatable packers | Robert M. Sorem | 1995-03-21 |
| 5390738 | Inflatable packer inner bladder retention and seal | Robert M. Sorem | 1995-02-21 |
| 5363542 | Method of assembly for inflatable packer | Robert M. Sorem | 1994-11-15 |
| 5361836 | Straddle inflatable packer system | Robert M. Sorem, Bart Thomeer | 1994-11-08 |
| 5353871 | Inflatable packer with protective rings | Robert M. Sorem | 1994-10-11 |
| 5350018 | Well treating system with pressure readout at surface and method | Robert M. Sorem, Hubertus V. Thomeer, Darrin L. Willauer, Sarmad Adnan | 1994-09-27 |
| 5280824 | Sealing element for inflatable packer | Robert M. Sorem | 1994-01-25 |
| 5127807 | Ultra high pressure field end for a reciprocating pump | — | 1992-07-07 |
| 5127784 | Fatigue-resistant buttress thread | — | 1992-07-07 |
| 5065789 | Back pressure regulating valve for ultra high pressures | — | 1991-11-19 |
| 4989469 | Eccentric gear pump and drive mechanism therefor | — | 1991-02-05 |
| 4990058 | Pumping apparatus and pump control apparatus and method | — | 1991-02-05 |