Inventor
DAVID M. BARNES
Inventor
US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F01Lprimary
F01LCyclically operating valves for machines or engines17%
F01MLubricating of machines or engines in general17%
F02BInternal-combustion piston engines17%
F02FCylinders, pistons or casings, for combustion engines13%
F16HGearing9%
B01DSeparation4%
F01PCooling of machines or engines in general4%
F02DControlling combustion engines4%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%
F16CShafts4%
PatentTitleYear
12,480,438Internal combustion engine including through-bolt aperture and single through-bolt202512,435,649Valve actuation system comprising a discrete lost motion device202512,264,604Maintaining oil pressure during cylinder deactivation operation202512,215,650Cylinder head for internal combustion engine202512,163,449Reduced parasitic lube system202412,012,913Fuel system cover for an internal combustion engine202411,927,118Remotely mounted idler gear202411,719,139Reduced parasitic lube system202311,591,937Remotely mounted idler gear202311,162,414Enhanced idler shaft interface for improving structural integrity of flywheel housing2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to CUMMINS INC (10)· patent assignee history
2021–2025Based in US· patent location history
2025Patents assigned to JACOBS VEHICLE SYSTEMS INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CUMMINS INC | 10 | 2021–2025 |
| JACOBS VEHICLE SYSTEMS INC | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 10 | 2021–2025 |