Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6110243 | Cleanable filter bag assembly | Raymond M. Wnenchak, John E. Bacino, Stephen K. Stark, Karen Tronto | 2000-08-29 |
| 5928414 | Cleanable filter media and filter elements | Raymond M. Wnenchak, John E. Bacino, Stephen K. Stark | 1999-07-27 |
| 5536290 | Pleated cartridge filter attachment for top loading filter assemblies | Stephen K. Stark | 1996-07-16 |