Hagar, Donald K.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hagar, Donald K..The latest application filed is for "flow diverter arrangement".
- Hagar, Donald K. - Almont CO
- Hagar; Donald K. - Emmaus PA
- Hagar; Donald K. - Emmans PA
- Hagar; Donald K. - Bethlehem PA
- Hagar; Donald K. - Allentown PA
- Hagar; Donald K. - Macungie PA
- Hagar; Donald K. - Pittsburgh PA
| Patent | Date |
|---|---|
| Flow diverter arrangement App 20050022887 - Hagar, Donald K. | 2005-02-03 |
| Apparatus and method for delivery of particulate fuel and transport air Grant 5,427,314 - Hagar June 27, 1 | 1995-06-27 |
| Burner register assembly Grant 5,302,115 - Hagar , et al. April 12, 1 | 1994-04-12 |
| Apparatus and method for delivery of combustion air in multiple zones Grant 5,211,705 - Hagar May 18, 1 | 1993-05-18 |
| Method and system for controlling the supply of fuel and air to a furnace Grant 4,927,351 - Hagar , et al. May 22, 1 | 1990-05-22 |
| Burner register assembly Grant 4,504,216 - Hagar , et al. March 12, 1 | 1985-03-12 |
| Multiple blade damper assembly Grant RE31,471 - Hagar December 27, 1 | 1983-12-27 |
| Louver Valve Grant 3,847,373 - Hagar November 12, 1 | 1974-11-12 |
| Drill String Dump Valve Grant 3,552,412 - Hagar , et al. January 5, 1 | 1971-01-05 |
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