Inventor
John R. Coleman
Inventor
Dayton, OH, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B60Tprimary
B60TVehicle brake control systems or parts thereof50%
Y10TTechnical subjects covered by former us classification13%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables4%
E04HBuildings or like structures for particular purposes4%
F16JPistons4%
F16KValves4%
F41HArmour4%
F41JTargets4%
G01FMeasuring volume, volume flow, mass flow or liquid level4%
G01SRadio direction-finding4%
PatentTitleYear
8,424,796'Reel'20137,600,272'Spa cover lifter and method'20095,647,212'Master cylinder reservoir assembly'19975,101,631'Integral reservoir seal of a master cylinder'19925,022,713'Venting master cylinder reservoir diaphragm'19914,987,739'Master cylinder with collapsible piston locator'19914,987,740'Assured venting master cylinder diaphragm apparatus and method'19914,981,016'Master cylinder dip stick'19914,955,197'Master cylinder attachment adapter'19904,945,728'Center compensating tandem master cylinder with seals in cylinder wall'19904,694,652'Master cylinder with reservoir mounting arrangement'19874,445,333'Valve assembly'19844,373,333'Quick take-up master cylinder with check valve assembly'19834,233,605'Helicopter radar decoy'19804,061,346'Cup seal for use in a master cylinder'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1997Patents assigned to GEN MOTORS CORP (12)· patent assignee history
1977–1997Based in Dayton, OH, US· patent location history
1980Based in Westminster, CA, US· patent location history
2009Patents assigned to MERLIN TECHNOLOGIES INC (1)· patent assignee history
2009–2013Based in Philadelphia, PA, US· patent location history
2013Patents assigned to COLEMAN JOHN (1)· patent assignee history
2013Patents assigned to DIRECT WIRE & CABLE INC (1)· patent assignee history
2013Patents assigned to GALEWYRICK SETH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN MOTORS CORP | 12 | 1977–1997 |
| COLEMAN JOHNself | 1 | 2013 |
| DIRECT WIRE & CABLE INC | 1 | 2013 |
| GALEWYRICK SETH | 1 | 2013 |
| MERLIN TECHNOLOGIES INC | 1 | 2009 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dayton, OH, US | 12 | 1977–1997 |
| Philadelphia, Pennsylvania, US | 2 | 2009–2013 |
| Westminster, California, US | 1 | 1980 |