Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5500094 | Coke drum deheading device | Dave P. McConathy, Daniel J. Quintana, Harold D. Sloan | 1996-03-19 |
| 5490920 | Self-cleaning sedimentation unit | Frederick B. Kronmiller | 1996-02-13 |
| 5294157 | Adjustable springs for pressure vessel closure | John D. Smith | 1994-03-15 |
| 5228825 | Pressure vessel closure device | Frederick B. Kronmiller | 1993-07-20 |