Echols; John C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Echols; John C..The latest application filed is for "access control apparatus".
- Echols; John C. - Santa Barbara CA
- Echols; John C. - Ventura CA
| Patent | Date |
|---|---|
| Touchless microwave switch Grant D738,882 - Miszkiewicz , et al. September 15, 2 | 2015-09-15 |
| Smart card RFID reader Grant D724,588 - Miszkiewicz , et al. March 17, 2 | 2015-03-17 |
| Access control apparatus Grant 7,063,471 - Kaufman , et al. June 20, 2 | 2006-06-20 |
| Access control apparatus App 20040247363 - Kaufman, Peter ; et al. | 2004-12-09 |
| Weatherproof electronic keypad with replaceable graphics overlay Grant 5,674,018 - Kaufman , et al. October 7, 1 | 1997-10-07 |
| Piezoelectric electronic switch Grant 5,231,326 - July 27, 1 | 1993-07-27 |
| Coupling circuit between high impedance piezoelectric signal source and utilizing circuit Grant 4,490,639 - Echols , et al. December 25, 1 | 1984-12-25 |
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