Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11629872 | Single pass kill air purifier system and process of operation | Peter Broadbridge | 2023-04-18 |
| 8370267 | System and method for appraiser-assisted valuation | Timothy McParland | 2013-02-05 |
| 7914733 | Photocatalyst, methods for deodorizing, and methods for making a deodorizer system | — | 2011-03-29 |
| 5997619 | Air purification system | Russell P. Knuth | 1999-12-07 |
| 5616172 | Air treatment system | Mark A. Tuckerman, Russell P. Knuth | 1997-04-01 |