Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6695685 | Low flow rate nozzle system for dry ice blasting | Robert S. Anderson | 2004-02-24 |
| 6404413 | Electrostatic chromatophoric display | Ellis D. Harris | 2002-06-11 |
| 5249426 | Apparatus for making and delivering sublimable pellets | Philip Spivak, Alan E. Opel, Oleg Zadorozhny | 1993-10-05 |
| 5203794 | Ice blasting apparatus | Philip Spivak, Oleg Zadorozhny, Alan E. Opel | 1993-04-20 |