Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8277288 | Particle blast cleaning apparatus with pressurized container | Philip Spivak | 2012-10-02 |
| 6346035 | Generation of an airstream with subliminable solid particles | Robert S. Anderson, Alan E. Opel, Philip Spivak | 2002-02-12 |
| 5520572 | Apparatus for producing and blasting sublimable granules on demand | Alan E. Opel, Philip Spivak | 1996-05-28 |
| 5249426 | Apparatus for making and delivering sublimable pellets | Philip Spivak, Alan E. Opel, Scott M. Stratford | 1993-10-05 |
| 5203794 | Ice blasting apparatus | Scott M. Stratford, Philip Spivak, Alan E. Opel | 1993-04-20 |