Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8997370 | Centrifugal dryer with replaceable blades and self-cleaning rotor seal and centrifugal dewatering tower | Tadeuz Rybka | 2015-04-07 |
| 8939744 | Underwater pelletizer | Tadeusz Rybka | 2015-01-27 |
| 8806771 | Low impact belt dryer | Tadeuz Rybka | 2014-08-19 |
| 8454344 | Magnetic clamp for underwater pelletizer | — | 2013-06-04 |
| 8371140 | Refrigerated container for super frozen temperatures | B. Eric Graham | 2013-02-12 |
| 8083509 | Underwater pelletizer | Tadeusz Rybka | 2011-12-27 |
| 4564350 | Plastic extruder assembly | Frank T. Keyser | 1986-01-14 |
| 4529370 | Pelletizer | Frank T. Keyser | 1985-07-16 |
| 4411531 | Extruder assembly | Frank T. Keyser | 1983-10-25 |