Inventor
John C. Echols
Inventor
Santa Barbara, CA, US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Hprimary
H01HElectric switches15%
LOC1015%
LOC1415%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for8%
G01RMeasuring electric variables8%
G07CTime or attendance registers8%
G08BSignalling systems, e.g. personal calling systems8%
H03KPulse technique8%
H10NElectric solid-state devices not otherwise provided for8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
9,140,757'Testing a circuit assembly that contains a piezoelectric switch'2015D0738882'Touchless microwave switch'2015D0724588'Smart card RFID reader'20157,063,471'Access control apparatus'2006D0491087'Keypad'2004D0459671'Keypad'20025,674,018'Weatherproof electronic keypad with replaceable graphics overlay'19974,636,775'Sensor for an alarm system'19874,490,639'Coupling circuit between high impedance piezoelectric signal source and utilizing circuit'19844,458,173'Pressure sensitive electric signal generator'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1987Patents assigned to ESSEX TEC CORP (3)· patent assignee history
1984–1987Based in Ventura, CA, US· patent location history
1997–2015Patents assigned to ESSEX ELECTRONICS INC (7)· patent assignee history
1997–2015Based in Santa Barbara, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ESSEX ELECTRONICS INC | 7 | 1997–2015 |
| ESSEX TEC CORP | 3 | 1984–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Santa Barbara, California, US | 7 | 1997–2015 |
| Ventura, California, US | 3 | 1984–1987 |