Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7443167 | Interleaved magnetometry and pulsed electromagnetic detection of underground objects | Robert Mark Siegel, Gilbert Johnson | 2008-10-28 |
| 5629626 | Apparatus and method for measuring buried ferromagnetic objects with a high accuracy of position and in synchronization with a sync pulse provided by a global positioning system | Richard J. Russell, Robert Mark Siegel, John E. Foley, Thomas Alexander Glenn, III, Thomas J. Gorman | 1997-05-13 |
| 5469176 | Focused array radar | Sheldon Sandler, Daniel Schwarzkopf, Gilbert Johnson, Rudolph Borkowski | 1995-11-21 |
| 4236546 | Electronic breathing mixture control | Claude E. Manley, John J. Pennella, Donald Deaton, James P. Hersey | 1980-12-02 |