Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6839449 | Key identification system | John Clayton Campbell, Michael Mueller | 2005-01-04 |
| 6839451 | Key identification system | John Clayton Campbell, Michael Mueller | 2005-01-04 |
| 6836553 | Key identification system | John Clayton Campbell, Michael Mueller | 2004-12-28 |
| 5676504 | Key cutting machine with key tracing and electronic code cutting duplication modes | Michael Mueller, Bradley D. Carlson | 1997-10-14 |
| 5607267 | Method and apparatus for aligning and cutting single-sided and double-sided keys | Robert Almblad, Mike Mueller | 1997-03-04 |
| 5443339 | Method and apparatus for aligning and cutting single-sided and double sided keys | Robert Almblad, Mike Mueller | 1995-08-22 |
| 5351409 | Key identifier method and apparatus | — | 1994-10-04 |
| 5314274 | Method and apparatus for duplicating keys using tip-referenced alignment between key blank and master key | Robert Almblad, Mike Mueller | 1994-05-24 |
| 5271698 | Key cutting machine with a code selectable key duplicating system | Peter G. Piatkowski, Robert Almblad, Mike Mueller | 1993-12-21 |
| 5167171 | Universal key blank and key duplication method | — | 1992-12-01 |