Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7617412 | Safety timer crosscheck diagnostic in a dual-CPU safety system | Daniel M. Gass | 2009-11-10 |
| 7027880 | Safety controller providing rapid recovery of safety program data | Joseph P. Izzo, Michael D. Kalan, Charles M. Rischar, Raymond Louis Buvel | 2006-04-11 |
| 6272388 | Program structure and method for industrial control | Raymond Louis Buvel, Steven K. Chandler, Joseph P. Izzo, Lawrence G. Searing | 2001-08-07 |