Sigafus; Paul E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sigafus; Paul E..The latest application filed is for "variable output heating and cooling control".
- Sigafus; Paul E. - Medina MN
| Patent | Date |
|---|---|
| Variable output heating and cooling control Grant 7,293,718 - Sigafus , et al. November 13, 2 | 2007-11-13 |
| Variable output heating and cooling control App 20050159844 - Sigafus, Paul E. ; et al. | 2005-07-21 |
| Variable output heating and cooling control Grant 6,866,202 - Sigafus , et al. March 15, 2 | 2005-03-15 |
| Variable speed controller for air moving applications using an AC induction motor Grant 6,864,659 - Ratz , et al. March 8, 2 | 2005-03-08 |
| Variable output heating and cooling control App 20030059730 - Sigafus, Paul E. ; et al. | 2003-03-27 |
| Variable speed controller for air moving applications using an AC induction motor App 20030030408 - Ratz, James W. ; et al. | 2003-02-13 |
| Optical flame detector performance tester Grant 5,236,328 - Tate , et al. August 17, 1 | 1993-08-17 |
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