Potthof, Erwin
Patent Applications and Registrations
Patent applications and USPTO patent grants for Potthof, Erwin.The latest application filed is for "device for detecting a condition at a plate or wall of a domestic appliance".
- Potthof, Erwin - Rothenbach DE
- Potthof; Erwin - Rothebach P. DT
| Patent | Date |
|---|---|
| Device for detecting a condition at a plate or wall of a domestic appliance App 20030222076 - Potthof, Erwin ; et al. | 2003-12-04 |
| Electronic apparatus for monitoring the remaining storage period of frozen foods Grant 5,243,579 - Potthof September 7, 1 | 1993-09-07 |
| Circuit arrangement for the control of a ventilator Grant 5,074,281 - Fluhrer , et al. December 24, 1 | 1991-12-24 |
| Electronic control circuit for the formation of a monostable switching behavior in a bistable relay Grant 4,455,587 - Potthof , et al. June 19, 1 | 1984-06-19 |
| Digital display with stepping device Grant 3,950,939 - Meisner , et al. April 20, 1 | 1976-04-20 |
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