Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10853594 | Lockout tagout system and method | Joseph E. Valencia, Charles W. Grab | 2020-12-01 |
| 7280925 | Installed instrumentation maintenance method | Shawn A. Egnak, Charles Savage, Margaret A. Connolly, Vincent DiFilippo | 2007-10-09 |