Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431162 | Low profile cone valve assembly | — | 1984-02-14 |
| 4318531 | Low profile cone valve assembly | — | 1982-03-09 |
| 4311298 | Low profile tank car ball valve | — | 1982-01-19 |
| 4264053 | Top operated outlet valve with unitary closure guide and retainer | — | 1981-04-28 |
| 4248261 | Eduction pipe assembly having upper flexible member | — | 1981-02-03 |
| 4240607 | Top operated tank car lading valve also operable from the bottom | — | 1980-12-23 |