Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7564426 | Location sensitive display device, system, and method of providing animation sequences | Roger Holzberg, Paul Henry Dietz, Lawrence P. Stein, Robert Swirsky | 2009-07-21 |
| 6620043 | Virtual tug of war | Eric C. Haseltine, John W. Sogge | 2003-09-16 |
| 5739462 | Method and apparatus for creating pyrotechnic effects | John W. Sogge | 1998-04-14 |
| 5627338 | Fireworks projectile having distinct shell configuration | B. Thomas Craven, Bernard M. Durgin | 1997-05-06 |
| 5526750 | Fireworks projectile having combustible shell | B. Thomas Craven, Bernard M. Durgin | 1996-06-18 |
| 5339741 | Precision fireworks display system having a decreased environmental impact | B. Thomas Craven, William G. Wiedefeld, Bruce S. Johnson, John W. Sogge, Michael Peterson +2 more | 1994-08-23 |
| 4993242 | Cleaning aid for dyeing apparatus | — | 1991-02-19 |