Inventor
David C. Boyer
Inventor
Huntington, WV, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C10Cprimary
C10CWorking-up pitch, asphalt, bitumen, tar15%
C09DCoating compositions, e.g. paints, varnishes or lacquers8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B42DBooks6%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers6%
C08LCompositions of macromolecular compounds6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
Y10TTechnical subjects covered by former us classification6%
D06FLaundering, drying, ironing, pressing or folding textile articles4%
A44BButtons, pins, buckles, slide fasteners, or the like2%
PatentTitleYear
10,934,886Method for managing a breakdown of a turbine engine starter valve202110,731,084Pitch process20209,764,874'Slide opening display and mail package'20179,227,775'Slide opening display and mail package'20167,625,479'Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content'20097,393,449'Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content'20087,384,003'Apparatus and methods for preventing engagement of stacked embossed cards'20087,282,135'Low viscosity, high carbon yield pitch product'20077,252,755'Viscosity modification of heavy hydrocarbons'20077,108,152'Fryer vats having strengthened vat welds and methods of manufacturing such fryer vats'20067,097,703'Use of anti-strip agents to improve wear characteristics of pavement sealer'20067,067,050'Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content'20066,827,841'Low viscosity, high carbon yield pitch product'20046,403,659'Sealer from SDA asphalt'20026,383,365'Low softening point petroleum pitch and sealer'20026,361,591'Sealer from asphalt and pitch'20026,267,809'Driveway sealer using phase stable pourable pitch'20015,898,974'Adjustable handle assembly'19995,819,939'Interconnecting blister package'19985,533,232'Hand lever assembly'19964,365,582'Differential pressure signal device'1982D0262864'Screw anchor'1982D0256911'Electric light socket'19804,193,310'Idler pulley'19804,171,555'Buckle'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1982Patents assigned to ILLINOIS TOOL WORKS (5)· patent assignee history
1979–1982Based in Chicago, IL, US· patent location history
1996–1999Patents assigned to ALVORD POLK INC (2)· patent assignee history
1996–1999Based in Millersburg, PA, US· patent location history
1998–2017Based in Madison, WI, US· patent location history
2001–2009Patents assigned to MARATHON ASHLAND PETROLEUM LLC (8)· patent assignee history
2001–2009Based in Huntington, WV, US· patent location history
2006–2007Patents assigned to MARATHON ASHLAND PETROLEUM CO (3)· patent assignee history
2008–2017Patents assigned to MCD INC (3)· patent assignee history
2021Based in Moissy-Cramayel, FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MARATHON ASHLAND PETROLEUM LLC | 8 | 2001–2009 |
| ILLINOIS TOOL WORKS | 5 | 1979–1982 |
| MARATHON ASHLAND PETROLEUM CO | 3 | 2006–2007 |
| MCD INC | 3 | 2008–2017 |
| ALVORD POLK INC | 2 | 1996–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Huntington, WV, US | 11 | 2001–2009 |
| Chicago, Illinois, US | 5 | 1979–1982 |
| Madison, WI, US | 4 | 1998–2017 |
| Millersburg, Pennsylvania, US | 2 | 1996–1999 |
| Moissy-Cramayel, FR | 1 | 2021 |