Inventor
Robert H. Marjoram
Inventor
Holly Springs, NC, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Fprimary
F16FSprings21%
B60GVehicle suspension arrangements18%
B62DMotor vehicles18%
F16DCouplings for transmitting rotation15%
Y10TTechnical subjects covered by former us classification9%
B25DPercussive tools6%
B25FCombination or multi-purpose tools not otherwise provided for6%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing3%
B60TVehicle brake control systems or parts thereof3%
B63HMarine propulsion or steering3%
PatentTitleYear
8,602,182'Controllable vehicle suspension system with a controllable magnetorheological fluid strut'20138,397,883'Brake with field responsive material'20138,353,393'Operator interface controllable brake with field responsive material'20138,322,497'Magneto-rheological dampers for semi-active suspension systems'20127,849,983'Controllable vehicle suspension system with a controllable magnetorheological fluid strut'20107,198,140'Brake with field responsive material'20076,854,573'Brake with field responsive material'20056,695,102'Magnetorheological twin-tube damping device'20046,070,681'Controllable cab suspension'20005,993,358'Controllable platform suspension system for treadmill decks and the like and devices therefor'19995,927,407'Isolated hand-held vibrating device'19995,842,547'Controllable brake'19985,839,517'Vibration isolator for hand-held vibrating devices'19985,388,811'Torque-control system for vehicles cabs and the like'19954,993,523'Fluid circuit for semiactive damper means'19914,738,434'Vibration and/or shock attenuating fluid mount or the like'19884,488,613'Fluid suspensions'19844,470,477'Hydropneumatic suspensions'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984Patents assigned to DUNLOP LTD (2)· patent assignee history
1984Based in Wyken, GB· patent location history
1984Based in Coventry, GB· patent location history
1988–2013Patents assigned to MARJORAM ROBERT H (4)· patent assignee history
1988–1999Based in Erie, PA, US· patent location history
1991–2013Patents assigned to LORD CORP (15)· patent assignee history
1999–2013Based in Holly Springs, NC, US· patent location history
2012–2013Patents assigned to ST CLAIR KENNETH A (3)· patent assignee history
2012–2013Patents assigned to MCMAHON WILLIAM J (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LORD CORP | 15 | 1991–2013 |
| MARJORAM ROBERT Hself | 4 | 1988–2013 |
| ST CLAIR KENNETH A | 3 | 2012–2013 |
| DUNLOP LTD | 2 | 1984 |
| MCMAHON WILLIAM J | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Holly Springs, NC, US | 10 | 1999–2013 |
| Erie, Pennsylvania, US | 6 | 1988–1999 |
| Wyken, GB | 1 | 1984 |
| Coventry, GB | 1 | 1984 |