Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1060617 | Steam trap | Charles N. Miller | 2025-02-04 |
| D1018799 | Nozzle cartridge for steam trap | Charles N. Miller | 2024-03-19 |
| 11788684 | Steam trap construction with ease of access for maintenance | Charles N. Miller | 2023-10-17 |
| 5676719 | Universal insert for use with radiator steam traps | Lianquan Liu, Panos N. Stavropoulos | 1997-10-14 |
| 4486208 | Condensate removal device for steam lines and the like | — | 1984-12-04 |
| 4426213 | Condensate removal device for steam lines and the like | — | 1984-01-17 |