Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6927394 | Fire detector with electronic frequency analysis | Owen D. Parham | 2005-08-09 |
| 6518574 | Fire detector with multiple sensors | — | 2003-02-11 |
| 6515283 | Fire detector with modulation index measurement | Owen D. Parham, Theodore R. Lapp | 2003-02-04 |
| 6507023 | Fire detector with electronic frequency analysis | Owen D. Parham | 2003-01-14 |
| 6239435 | Fire detector with replacement module | — | 2001-05-29 |
| 6153881 | Fire detector and housing | — | 2000-11-28 |
| 6078050 | Fire detector with event recordation | — | 2000-06-20 |
| 6064064 | Fire detector | — | 2000-05-16 |
| 6057549 | Fire detector with multi-level response | — | 2000-05-02 |
| 6046452 | Process and system for flame detection | Chris A. Selstad, Theodore R. Lapp | 2000-04-04 |
| 5949235 | System and method for detection and control of ungrounded parts in a production coating line | Anthony Brendan Williams, Chris A. Selstad | 1999-09-07 |
| 5773826 | Flame detector and protective cover with wide spectrum characteristics | Chris A. Selstad | 1998-06-30 |
| 5598099 | System and method for coincidence detection of ungrounded parts with detectors located within and outside a production coating area | Don R. Scarbrough, Robert C. Lindrud | 1997-01-28 |