Inventor
David R. Stewart
Inventor
Kent, OH, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B60Cprimary
B60CVehicle tyres14%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients11%
C08LCompositions of macromolecular compounds11%
Y10TTechnical subjects covered by former us classification11%
B01DSeparation7%
C02FTreatment of water, waste water, sewage, or sludge7%
C09DCoating compositions, e.g. paints, varnishes or lacquers7%
B01LChemical or physical laboratory apparatus for general use4%
F16KValves4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
PatentTitleYear
10,890,748Automated substrate loading20219,556,351'Rubber composition suitable for use as a cap ply in a tire'20179,163,127'Rubber composition suitable for use as a cap ply in a tire'20158,097,163'Purification of oil field production water for beneficial use'20127,938,158'Puncture resistant pneumatic tire'20117,592,384'Elatomeric composition containing multiple silane coupling agents'20096,348,154'Methods to remove metals from water'20025,715,858'Globe valve sticking prevention'19985,529,626'Spincup with a wafer backside deposition reduction apparatus'19964,701,578'Multi-position selector switch assemby means'19874,675,578'Electric votive light controller'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to BRIGHTER LIGHT LITURGICAL FURN (1)· patent assignee history
1996Based in Sacramento, CA, US· patent location history
1998Based in West Allis, WI, US· patent location history
2002–2012Based in Fort Collins, CO, US· patent location history
2009–2015Patents assigned to STEWART DAVID R (3)· patent assignee history
2009–2017Based in Kent, OH, US· patent location history
2011–2015Patents assigned to BRIDGESTONE AMERICAS TIRE (2)· patent assignee history
2017Patents assigned to BRIDGESTONE AMERICAS TIRE OPERATIONS INC (1)· patent assignee history
2017Patents assigned to BRIDGESTONE AMERICAS TIRE OPERATIONS LLC (1)· patent assignee history
2021Based in Seattle, WA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| STEWART DAVID Rself | 3 | 2009–2015 |
| BRIDGESTONE AMERICAS TIRE | 2 | 2011–2015 |
| BRIDGESTONE AMERICAS TIRE OPERATIONS INC | 1 | 2017 |
| BRIDGESTONE AMERICAS TIRE OPERATIONS LLC | 1 | 2017 |
| BRIGHTER LIGHT LITURGICAL FURN | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kent, OH, US | 4 | 2009–2017 |
| Fort Collins, CO, US | 2 | 2002–2012 |
| Seattle, Washington, US | 1 | 2021 |
| West Allis, WI, US | 1 | 1998 |
| Sacramento, California, US | 1 | 1996 |