Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D950647 | Clip stand assembly | — | 2022-05-03 |
| 11227513 | Holding device with flexible adapter | — | 2022-01-18 |
| 10867528 | Display tag with clipstand, barreled instrument, tag, and lanyard | — | 2020-12-15 |
| 4599509 | Access security control | Everett A. Johnson | 1986-07-08 |
| 4566484 | Liquid level control apparatus | — | 1986-01-28 |
| 4524434 | Method for determining the azimuth and length of a deep vertical fracture in the earth | — | 1985-06-18 |
| 4497044 | Seismic wave generator | — | 1985-01-29 |
| 4479204 | Method of monitoring the spacial production of hydrocarbons from a petroleum reservoir | — | 1984-10-23 |
| 4464566 | Access security control | Everett A. Johnson | 1984-08-07 |
| 4432078 | Method and apparatus for fracturing a deep borehole and determining the fracture azimuth | — | 1984-02-14 |
| 4395628 | Access security control | Everett A. Johnson | 1983-07-26 |
| 4303852 | Access security control | Everett A. Johnson | 1981-12-01 |
| 4281713 | Method and apparatus for monitoring the position and movement progress of the flame front in an underground combustion | Milton D. Wood | 1981-08-04 |
| 4282587 | Method for monitoring the recovery of minerals from shallow geological formations | — | 1981-08-04 |
| 4280200 | Seismic method of mapping horizontal fractures in the earth | — | 1981-07-21 |
| 4252209 | Downhole liquid pressure seismic source and bit positioning system | — | 1981-02-24 |
| 4213038 | Access security system | Everett A. Johnson | 1980-07-15 |