Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5090451 | Combination steam and fuel oil supply and purge valve with recirculation feature | Joseph R. Buchanan | 1992-02-25 | $8,762,000 |
| 5048563 | Steam and fuel oil supply and purge valve with cooling steam feature | Joseph R. Buchanan | 1991-09-17 | $26,719,000 |