| 7343693 |
Scale assembly for optical encoder having affixed optical reference markers |
Donald L. Grimes, William G. Thorburn, Stuart A. Dodson, II, Keith M. Hinrichs, Andrew Goldman +2 more |
2008-03-18 |
| 7324212 |
Optical encoder having slanted optical detector elements for harmonic suppression |
William G. Thorburn |
2008-01-29 |
| 7193204 |
Multi-track optical encoder employing beam divider |
— |
2007-03-20 |
| 7067797 |
Optical position encoder having alignment indicators providing quantitative alignment indications |
William G. Thorburn, Andrew Goldman, Keith M. Hinrichs |
2006-06-27 |
| 6686585 |
Position encoder with scale calibration |
Donald L. Grimes, Stuart Schechter |
2004-02-03 |
| 5783752 |
Diffuse surface interference position sensor |
William G. Thorburn, Bruce A. Horwitz |
1998-07-21 |
| 5754295 |
Non-contacting torque sensor and displacement measuring apparatus and method |
— |
1998-05-19 |
| 5646730 |
Relative movement detecting apparatus using a detector positioned in a region of natural interference |
William G. Thorburn |
1997-07-08 |
| 5559600 |
Apparatus for detecting relative movement |
— |
1996-09-24 |
| 5486923 |
Apparatus for detecting relative movement wherein a detecting means is positioned in the region of natural interference |
William G. Thorburn |
1996-01-23 |
| 5022485 |
Method and apparatus for detonation of distributed charges |
— |
1991-06-11 |
| 4991684 |
Method and apparatus for detonation of distributed charges |
— |
1991-02-12 |