Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7568289 | Handheld optical distance measurement device | Andrew G. Butler, Calvin Chan, Mark Della Bona, Jeffery Fincher, Daniel Lester Hill +2 more | 2009-08-04 |
| 7170076 | Tools with orientation detection | Andrew G. Butler, Christopher Tacklind, Lance Reisman, Daniel T. Adams, Eugene F. Duval +3 more | 2007-01-30 |
| 6878954 | Detecting tool orientation, alignment, depth, and leveling | Andrew G. Butler, Christopher Tacklind, Lance Reisman, Daniel T. Adams, Eugene F. Duval +3 more | 2005-04-12 |
| 6848188 | Laser alignment device providing multiple references | Christopher Tacklind, Jonathan Carver, Thomas Zimmerman, Wolfgang Ott | 2005-02-01 |