Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5523995 | Optical information read/write system with a spread plane beam | Kai S. Lichtenberg | 1996-06-04 |
| 4407157 | Apparatus for measuring the diameter of a borehole | — | 1983-10-04 |
| 4320340 | Apparatus for measuring magnetic flux density resulting from galvanic current flow in subsurface casing using a plurality of flux gates | — | 1982-03-16 |
| 4205266 | Method and apparatus to determine the proximity of a permanent magnet using a magnetometer | — | 1980-05-27 |