Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4214387 | Trenching apparatus and method | Herman F. Boehme, Avadhesh N. L. Srivastav | 1980-07-29 |
| 4190382 | Separable trenching apparatus | Thomas R. Schmitz, Avadhesh N. L. Srivastav, William A. Morgan | 1980-02-26 |