Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993874 | Method and apparatus for the collection of reduced gases | — | 1991-02-19 |
| 4573354 | Apparatus and method for geochemical prospecting | Kent J. Voorhees | 1986-03-04 |
| 4565786 | Method for detecting mercury gas | John A. Dunkhase, James C. Fisher, II | 1986-01-21 |