Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10550954 | Elastomeric in-line tide gate valve | Michael J. Duer, Chris Raftis | 2020-02-04 |
| 6505810 | Pinch valve arrangement for flow control | — | 2003-01-14 |
| 6367505 | Check valve with oversized bill | Spiros G. Raftis, Michael J. Duer | 2002-04-09 |
| 4803052 | Carbon monoxide detector | Marion A. Keyes, IV | 1989-02-07 |
| 4763696 | Weld joint for soot blower lance tube | — | 1988-08-16 |