Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8013595 | AC magnetic tracking system with phase locking | Robert F. Higgins, Henry E. Himberg | 2011-09-06 |
| 7873491 | AC magnetic tracking system with non-coherency between sources and sensors | Robert F. Higgins, Allan G. Rodgers, Jr. | 2011-01-18 |
| 7292948 | Magnetic position and orientation measurement system with eddy current distortion compensation | Robert F. Higgins, Henry E. Himberg | 2007-11-06 |
| 6789979 | Highway safety net | — | 2004-09-14 |
| 6659530 | Retractable cover for recreational vehicle | — | 2003-12-09 |
| 6400139 | Methods and apparatus for electromagnetic position and orientation tracking with distortion compensation | Igor Khalfin | 2002-06-04 |
| 6377041 | Method and apparatus for determining electromagnetic field characteristics within a volume | Igor Khalfin | 2002-04-23 |
| 5307072 | Non-concentricity compensation in position and orientation measurement systems | — | 1994-04-26 |
| 4737794 | Method and apparatus for determining remote object orientation and position | — | 1988-04-12 |