Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6019943 | Diffusion barriers for preventing high temperature hydrogen attack | John V. Heyse | 2000-02-01 |
| 5807842 | Hydrocarbon processing in equipment having increased halide stree-corrosion cracking resistance | John V. Heyse | 1998-09-15 |