Johnson; Lloyd A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johnson; Lloyd A..The latest application filed is for "diagnostic system for detecting faulty sensors in liquid chiller air conditioning system".
- Johnson; Lloyd A. - Liverpool NY
- Johnson; Lloyd A. - Dover PA
- Johnson; Lloyd A. - Pasadena CA
| Patent | Date |
|---|---|
| Diagnostic system for detecting faulty sensors in liquid chiller air conditioning system Grant 4,660,386 - Hansen , et al. April 28, 1 | 1987-04-28 |
| Diagnostic system for detecting faulty sensors in a refrigeration system Grant 4,653,280 - Hansen , et al. March 31, 1 | 1987-03-31 |
| Programmable maintenance timer system Grant 4,539,632 - Hansen , et al. September 3, 1 | 1985-09-03 |
| Precision seed planter Grant 3,921,852 - Johnson November 25, 1 | 1975-11-25 |
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