Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5935525 | Air treatment method and apparatus for reduction of V.O.C.s, NOx, and CO in an air stream | Jessie E. Roberts | 1999-08-10 |
| 5765403 | Water treatment method and apparatus | Jessie E. Roberts | 1998-06-16 |
| 4752412 | Precious metal recovery using ozone | William P. Van Antwerp | 1988-06-21 |
| 4642134 | Precious metal recovery using UV ozone | William P. Van Antwerp | 1987-02-10 |