Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8709229 | Method to prevent sulfur accumulation in membrane electrode assembly | John L. Steimke, David T. Herman | 2014-04-29 |
| 7392856 | Rotating drum variable depth sampler | Thomas A. Nance | 2008-07-01 |
| 4888979 | Leak detection aid | — | 1989-12-26 |