Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4591006 | Well servicing rig | Paul V. Oldershaw, James E. Hansen | 1986-05-27 |
| 4527639 | Hydraulic piston-effect method and apparatus for forming a bore hole | Ben Wade Oakes Dickinson, III, Robert Wayne Dickinson | 1985-07-09 |
| 4470462 | Foam and particulate material with steam for permeability alteration in subsurface formations | — | 1984-09-11 |
| 4453570 | Concentric tubing having bonded insulation within the annulus | — | 1984-06-12 |
| 4407369 | Method and apparatus for placing a cement thermal packer | Glenn W. Anderson | 1983-10-04 |
| 4401160 | Dome-type packoff wellhead | Glenn W. Anderson | 1983-08-30 |
| 4399865 | Concentric steaming string downhole apparatus | Glenn W. Anderson | 1983-08-23 |
| 4385664 | Frangible cup thermal packer assembly for cased wells | — | 1983-05-31 |
| 4385663 | Packerless well completion assembly | — | 1983-05-31 |
| 4197910 | Jet device for use in wells | — | 1980-04-15 |
| 4187911 | Slant hole foam cleanout | Glenn W. Anderson | 1980-02-12 |