Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12000403 | Stator saver arrangement for canned motor pump | Patrick Aron DiRico, Drew Van Norman | 2024-06-04 |
| 7793418 | Mounting system and method for scraped surface heat exchanger blades | Drew Van Norman, Curt Hagen | 2010-09-14 |
| 7647666 | Scraper blade interlocking attachment apparatus and method | Drew Van Norman | 2010-01-19 |
| 7325269 | Scraper blade interlocking attachment apparatus and method | Drew Van Norman | 2008-02-05 |
| 7302999 | Scraper blade and method for scraped-surface heat exchanger | — | 2007-12-04 |
| 7303000 | Mounting system and method for scraped surface heat exchanger blades | Drew Norman, Curt Hagen | 2007-12-04 |
| 7237944 | Scraped heat exchanger having blade with protective rest nub | Curt Hagen, Gary Ferguson | 2007-07-03 |
| 7178807 | Shaft mounted seal device and method for a scraped surface heat exchanger | Drew Norman, Curt Hagen | 2007-02-20 |
| D520203 | Scraper blade | Drew Van Norman, Curtis L. Hagen | 2006-05-02 |
| D515760 | Scraper blade | Drew Van Norman, Curtis L. Hagen | 2006-02-21 |
| 6966757 | Scraper blade attachment apparatus and method with split pin | Drew Norman | 2005-11-22 |