Inventor
David A. Weitzenhof
Inventor
Akron, OH, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Fprimary
F16FSprings31%
B60GVehicle suspension arrangements17%
B60CVehicle tyres10%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%
H01QAntennas, i.e. radio aerials7%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for5%
F16CShafts5%
F16JPistons5%
B29DProducing particular articles from plastics or from substances in a plastic state2%
B67DDispensing, delivering or transferring liquids, not otherwise provided for2%
PatentTitleYear
6,868,717'Method and device to encapsulate tire tag'20056,637,733'Air spring with vibration isolation'20036,516,673'Device to encapsulate a pressure sensor'20036,474,630'Air spring swage assembly'20026,386,254'Device to encapsulate a substrate containing sensitive electronic components and a pressure sensor pack'2002RE037015'Vibration damping device using ER fluids having multiple electrodes'20016,161,430'Device to encapsulate a substrate containing sensitive electronic components and a pressure sensor pack'20005,590,745'Vibration damping device using ER fluids having multiple electrodes'19975,588,509'Splined vibration damping device using ER fluids'19965,449,150'Vibration damping device with an electrode and having rolling lobes of different radii'19955,180,145'Vibration damping device'19935,009,401'Air spring suspension system with dual path isolation'19914,899,995'Clamp ring assembly for air spring'19904,798,369'Ultrasonic air spring system'19894,793,598'Air spring having internal sealing band and method of installing same'19884,712,776'Air spring suspension system'19874,623,162'Dual trailing arm vehicle suspension system'19864,264,019'Beverage dispenser'19814,103,951'Semi-pneumatic energy absorbing bumper system for motor vehicles'19783,989,292'Semi-pneumatic energy absorbing bumper system for motor vehicles'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1989Patents assigned to FIRESTONE TIRE & RUBBER CO (7)· patent assignee history
1976–2005Based in Akron, OH, US· patent location history
1981–2003Based in Bath, OH, US· patent location history
1990–2001Patents assigned to BRIDGESTONE FIRESTONE INC (5)· patent assignee history
1993–1995Patents assigned to BRIDGESTONE CORP (2)· patent assignee history
2002–2003Patents assigned to BFS DIVERSIFIED PRODUCTS LLC (2)· patent assignee history
2003–2005Patents assigned to BRIDGESTONE FIRESTONE NORTH AM (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FIRESTONE TIRE & RUBBER CO | 7 | 1976–1989 |
| BRIDGESTONE FIRESTONE INC | 5 | 1990–2001 |
| BFS DIVERSIFIED PRODUCTS LLC | 2 | 2002–2003 |
| BRIDGESTONE CORP | 2 | 1993–1995 |
| BRIDGESTONE FIRESTONE NORTH AM | 2 | 2003–2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Akron, OH, US | 15 | 1976–2005 |
| Bath, OH, US | 5 | 1981–2003 |