Grald; Eric W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Grald; Eric W..The latest application filed is for "humidistat reset control".
- Grald; Eric W. - Canaan NH
- Grald; Eric W. - Lyme NH
- Grald; Eric W. - Maple Plain MN
| Patent | Date |
|---|---|
| Humidistat reset control Grant 5,351,855 - Nelson , et al. October 4, 1 | 1994-10-04 |
| Error based zone controller Grant 5,318,104 - Shah , et al. June 7, 1 | 1994-06-07 |
| Method and apparatus for controlling a heating/cooling system based on a temperature error Grant 5,115,968 - Grald May 26, 1 | 1992-05-26 |
| Zone control system providing synchronization of system operation with the zone of greatest demand Grant 5,024,265 - Buchholz , et al. June 18, 1 | 1991-06-18 |
| Temperature and humidity auctioneering control Grant 4,889,280 - Grald , et al. December 26, 1 | 1989-12-26 |
| Method for operating variable speed heat pumps and air conditioners Grant 4,873,649 - Grald , et al. October 10, 1 | 1989-10-10 |
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