Engelke; Roger P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Engelke; Roger P..The latest application filed is for "heating coil retainer bracket and method for manufacturing the same".
- Engelke; Roger P. - Holland MI
- Engelke; Roger P. - Roscoe IL
- Engelke; Roger P. - Rockford IL
| Patent | Date |
|---|---|
| Heating coil retainer bracket and method for manufacturing the same Grant 6,087,639 - Engelke , et al. July 11, 2 | 2000-07-11 |
| Device for sensing the volmetric flow rate of air in a duct Grant 4,453,419 - Engelke June 12, 1 | 1984-06-12 |
| Method and apparatus for reducing torque on an air damper Grant 4,295,632 - Engelke October 20, 1 | 1981-10-20 |
| Self-powered Variable Volume Air Damper Control Grant 3,809,314 - Engelke , et al. May 7, 1 | 1974-05-07 |
| Air Induction Box Grant 3,583,477 - Zille , et al. June 8, 1 | 1971-06-08 |
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