Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6315876 | Cathodic protection system | James E. Delahoyde | 2001-11-13 |
| 6187161 | Reference cell | James B. Bushman, Richard E. Say | 2001-02-13 |
| 5608449 | Wireless interactive consumer video system | John Swafford | 1997-03-04 |
| 5370783 | Electrode | James B. Bushman | 1994-12-06 |
| 5362051 | Entertainment and promotional method | John Swafford | 1994-11-08 |
| 4875630 | Leaf vacuum and shredder | — | 1989-10-24 |
| 4682958 | Data entry terminal and memory module therefor | William H. Slavik, George L. Cepynsky, Paul G. Dussault, Steven E. Margison, James Wolf | 1987-07-28 |
| 4355984 | Teaching device | William H. Slavik, Michael J. McGowan | 1982-10-26 |
| 4354418 | Automatic note analyzer | John V. Moravec, Michael J. McGowan | 1982-10-19 |