Inventor
David E. Campbell
Inventor
Westfield Center, OH, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Dprimary
A47DFurniture specially adapted for children16%
B60NSeats specially adapted for vehicles16%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for11%
LOC0611%
LOC0811%
A61NElectrotherapy5%
G01FMeasuring volume, volume flow, mass flow or liquid level5%
G06FElectric digital data processing5%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes5%
G08CTransmission systems for measured values, control or similar signals5%
PatentTitleYear
11,040,694Portable restraining passenger safety harness202110,640,078Portable restraining passenger safety harness20209,380,884'Crib'2016D0732869'Crib'20158,745,781'Crib'20148,613,480'Child restraint system'20138,572,775'Crib'2013D0690579'Latch for a crib'20138,424,964'Child safety seat'2013D0677954'Crib'2013D0666470'Latch for a crib'20128,226,162'Child safety seat'20127,499,864'Integrated travel industry system'20097,289,853'High frequency wireless pacemaker'20076,512,463'Bi-directional protocol'20036,304,191'Uni-directional protocol'20016,060,926'Pulse conditioning circuit'20004,993,027'Method and apparatus for determining microprocessor kernal faults'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2003Patents assigned to AMERICAN METER CO (3)· patent assignee history
2000–2003Based in Mountain View, CA, US· patent location history
2007Based in Belmont, CA, US· patent location history
2009Based in Miami, FL, US· patent location history
2012–2013Patents assigned to CAMPBELL DAVID E (7)· patent assignee history
2012–2016Patents assigned to FOUNDATIONS WORLDWIDE INC (7)· patent assignee history
2012–2013Patents assigned to BITER JASON (4)· patent assignee history
2012–2013Patents assigned to CAMPBELL COREY A (3)· patent assignee history
2012–2016Based in Westfield Center, OH, US· patent location history
2020–2021Based in Bolivar, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CAMPBELL DAVID Eself | 7 | 2012–2013 |
| FOUNDATIONS WORLDWIDE INC | 7 | 2012–2016 |
| BITER JASON | 4 | 2012–2013 |
| AMERICAN METER CO | 3 | 2000–2003 |
| CAMPBELL COREY A | 3 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Westfield Center, OH, US | 10 | 2012–2016 |
| Mountain View, California, US | 3 | 2000–2003 |
| Bolivar, OH, US | 2 | 2020–2021 |
| Miami, Florida, US | 1 | 2009 |
| Belmont, California, US | 1 | 2007 |