Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824450 | Apparatus to provide dry ice in different particle sizes to an airstream for cleaning of surfaces | — | 2004-11-30 |
| 6447377 | Dry ice blasting gun with adjustable handle | Joel Londenberg | 2002-09-10 |
| 6346035 | Generation of an airstream with subliminable solid particles | Robert S. Anderson, Philip Spivak, Oleg Zadorozhny | 2002-02-12 |
| 5520572 | Apparatus for producing and blasting sublimable granules on demand | Philip Spivak, Oleg Zadorozhny | 1996-05-28 |
| 5288028 | Apparatus for enhancing the feeding of particles from a hopper | Philip Spivak | 1994-02-22 |
| 5249426 | Apparatus for making and delivering sublimable pellets | Philip Spivak, Scott M. Stratford, Oleg Zadorozhny | 1993-10-05 |
| 5203794 | Ice blasting apparatus | Scott M. Stratford, Philip Spivak, Oleg Zadorozhny | 1993-04-20 |