Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334291 | On-site, controlled waste concentrator and solvent regenerator apparatus | William M. Langdon, deceased, Boris Goltsin, Gunther Erlebacher, Douglas A. Larson | 1994-08-02 |