Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11889760 | Seismic pressure and acceleration sensor | — | 2024-01-30 |
| 11871675 | Seismic pressure and acceleration measurement | Stig Rune Lennart Tenghamn | 2024-01-09 |
| 6566604 | Combination cable and device | Herbert Grunsteudel, Michael Hoffmann, John David Smith | 2003-05-20 |
| 6424768 | Cable | Herbert Grunsteudel, Michael Hoffmann, John David Smith | 2002-07-23 |