Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7007724 | Portable fluid delivery device | Steven Tsengas, Glenn Godley, Konstantine S. Tsengas | 2006-03-07 |
| 6640810 | Foot protector | Kevin Callsen, Terri Wade | 2003-11-04 |
| 6568433 | Portable fluid delivery device | Steven Tsengas, Glenn Godley | 2003-05-27 |
| 6484428 | Double-sided magnet with graphical image on each side | Evelyn Greenwald, Paul Tamulewicz | 2002-11-26 |
| D453969 | Foot protector | Kevin Callsen, Chris Callsen, Terri Wade | 2002-02-26 |
| 5210552 | Variable light transmitting sunglasses | Sam Cottone, George Lamping | 1993-05-11 |
| 4673181 | Skill action game | Sandra A. Levin, Wayne A. Kuna | 1987-06-16 |
| 4594071 | Composite toy vehicle assembly | John V. Zaruba, Terry E. Webb, Harry Disko | 1986-06-10 |