Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7712762 | Vehicle-attachable apparatus | — | 2010-05-11 |
| 7326170 | Method and apparatus for restoring or enhancing an ambient magnetic field | — | 2008-02-05 |
| 6203486 | Earth magnetic-field augmenters | Robert E. South, Michael R. South | 2001-03-20 |
| 5605345 | Wheeled apparatus for use as walker and wheelchair | Ronald Erfurth, Lloyd L. Lautzenhiser | 1997-02-25 |
| 5497509 | FM-PM receivers with increased sensitivity | Lloyd L. Lautzenhiser | 1996-03-05 |
| 4974183 | Computer keyboard with thumb-actuated edit keys | — | 1990-11-27 |
| 4473827 | Antenna tower assembly and method for supporting rotating carriage | Gary L. Ellingson, LeRoy A. Kapsner | 1984-09-25 |
| 4470050 | Antenna rotator with friction drive | Gary L. Ellingson | 1984-09-04 |
| 4468671 | Antenna tower assembly and method of attaching antennas | Gary L. Ellingson | 1984-08-28 |
| 4450450 | Antenna tower assembly | Gary L. Ellingson | 1984-05-22 |
| 4411189 | Fluid flow controlling device | — | 1983-10-25 |
| 4324171 | Fluid device and method for making | Richard P. Gaylord | 1982-04-13 |
| 4198822 | Load responsive hydraulic system | — | 1980-04-22 |