Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8043070 | Speed control | Robert W. Stiles, Jr., Lars Hoffmann Berthelsen, Ronald B. Robol, Daniel J. Hruby, Kevin Murphy +4 more | 2011-10-25 |
| 8019479 | Control algorithm of variable speed pumping system | Robert W. Stiles, Jr., Lars Hoffmann Berthelsen, Ronald B. Robol, Everett Cox, Donald Steen +10 more | 2011-09-13 |
| 7868591 | Cordless power system | Steven J. Phillips, Jeffrey J. Francis, Andrew E. Seman, Jr., Daniele C. Brotto, David A. Carrier +3 more | 2011-01-11 |