Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5259930 | Method for operation of automated top head and stem guide assembly for coking drums | Richard J. Barker, Frank A. DiGiacomo, James Hardy, Allen S. Malsbury | 1993-11-09 |
| 5092963 | Automated top head and stem guide assembly for coking drums | Richard J. Barker, Frank A. DiGiacomo, James Hardy, Allen S. Malsbury | 1992-03-03 |