Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5947262 | Conveyor with integrated self-actuating clamp | Mark D. Van Dyke | 1999-09-07 |
| 5878922 | Self venting plunger | — | 1999-03-09 |
| 5711217 | Vector screen printing method and apparatus | — | 1998-01-27 |
| 5630982 | Method and apparatus for extruding plastic tubing | — | 1997-05-20 |
| 5622288 | Cartridge plunger with surface cleaning skirt | — | 1997-04-22 |
| 5560521 | Recyclable caulk cartridge with breakaway nozzle | Norwood C. Bizzell | 1996-10-01 |
| 5297697 | Caulk cartridge with valve control | — | 1994-03-29 |
| 4781572 | Self-regulating gate valve assembly for injection molding apparatus | — | 1988-11-01 |
| 4342408 | Positive seal spout | Larry T. Quibell | 1982-08-03 |