Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6611760 | Method and system for estimating gas production by a landfill or other subsurface source | Gary R. Walter, Stewart Smith, Jinshan Tang, Christian Williamson | 2003-08-26 |
| 5332333 | Vacuum extraction method and apparatus for removing volatile contaminants from the vadose layer of contaminated earth | — | 1994-07-26 |