Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5759496 | Apparatus for removing VOC's from an exhaust gas stream | David L. Hickman, David S. Weiss | 1998-06-02 |
| 5750026 | Device for removal of contaminants from fluid streams | Kishor Purushottam Gadkaree | 1998-05-12 |
| 5628819 | Method and apparatus for continuous adsorption of adsorbable contaminates and adsorber regeneration | Jerald L. Mestemaker, Russell C. Wooten, B. R. Thakker, Paul E. Vargas, Andrew N. Andrascik +4 more | 1997-05-13 |
| 5281462 | Material, structure, filter and catalytic converter | John P. Day | 1994-01-25 |
| 5104540 | Coated molten metal filters | J. Paul Day, RONALD D. QUINN | 1992-04-14 |
| 5022991 | Thermite coated filter | John P. Day | 1991-06-11 |