Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7530255 | Devices, systems and methods for testing of gas detectors | William R. Frank, Daniel E. Bruce | 2009-05-12 |
| 7180076 | Photoionization detectors, ionization chambers for use in photoionization detectors, and methods of use of photoionization detectors | Daniel E. Bruce, Michael B. Schulman, Mark F. Zanella, Sr., James A. Cahall, James Brooks Miller | 2007-02-20 |