Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7793418 | Mounting system and method for scraped surface heat exchanger blades | Drew Van Norman, Benjamin Hardy | 2010-09-14 |
| 7563087 | Pump rotor seal apparatus and method | Drew Van Norman | 2009-07-21 |
| 7303000 | Mounting system and method for scraped surface heat exchanger blades | Drew Norman, Benjamin Hardy | 2007-12-04 |
| 7237944 | Scraped heat exchanger having blade with protective rest nub | Benjamin Hardy, Gary Ferguson | 2007-07-03 |
| 7178807 | Shaft mounted seal device and method for a scraped surface heat exchanger | Drew Norman, Benjamin Hardy | 2007-02-20 |
| 7114552 | Split mutator shaft | Drew Van Norman | 2006-10-03 |
| 6783342 | Method and apparatus for timing rotors in a rotary lobe pump | Drew Norman | 2004-08-31 |