Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11241663 | High efficiency, non-ragging, formed axial impeller | Robert W. Higbee, Jason J. Giacomelli | 2022-02-08 |
| 9962665 | High efficiency, non-ragging, formed axial impeller | Robert W. Higbee, Jason J. Giacomelli | 2018-05-08 |
| 9802169 | Method and apparatus for mixing | — | 2017-10-31 |
| 9044719 | Method and apparatus for mixing | — | 2015-06-02 |
| 8444823 | Method and apparatus for paper stock mixing | Todd Michael Hutchinson, Marc Robards Moseley | 2013-05-21 |
| 8323359 | Multi-stage crystallization apparatus and method | Robert W. Higbee, Chris Hibshman, Kevin Andrew Smith, Robert Peter Dowd, Carl P. Laird | 2012-12-04 |
| 8277114 | Gas foil impeller | Robert W. Higbee, Todd Michael Hutchinson | 2012-10-02 |
| 7377497 | Aeration system and method | Robert Peter Dowd, Peter John Knights | 2008-05-27 |
| 7172337 | Low shear impeller | Janusz Roszczenko | 2007-02-06 |
| 6464227 | Manometric fluid barrier seal | Steven C. Roselle, Robert Peter Dowd, Ronnie Thompson, Ravi K. Sharma | 2002-10-15 |
| 5762417 | High solidity counterflow impeller system | John Von Essen | 1998-06-09 |
| 5326226 | Continuous curve high solidity hydrofoil impeller | John Von Essen, Wojciech Zoladek | 1994-07-05 |
| 4847602 | Explosion-protected computer terminal | David J. Altland | 1989-07-11 |