Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235090 | Kitchen hood filtration apparatus | Samuel Bernstein | 2001-05-22 |
| 5197783 | Extendable/erectable arm assembly and method of borehole mining | Kenneth J. Theimer, Michael C. McDonald, Raj Paul | 1993-03-30 |
| 4536035 | Hydraulic mining method | Lester H. Huffman | 1985-08-20 |