Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5718824 | Collector hood for sedimentation tank | Shyam Kannan | 1998-02-17 |
| 5207930 | Filtration system with helical filter cartridge | — | 1993-05-04 |
| 4991780 | Duocone spray nozzle | Bernard A. Lewandowski | 1991-02-12 |
| 4981113 | Deaerator tray for a steam boiler feedwater heater system | John Stevenson | 1991-01-01 |
| 4586718 | Sealing assembly with floating gland means for rotatable shafts | Edward J. Stephenson | 1986-05-06 |