Inventor
Andrew P. Perr
Inventor
Columbus, IN, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Bprimary
F02BInternal-combustion piston engines15%
Y02TClimate change mitigation technologies related to transportation15%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof13%
F01PCooling of machines or engines in general10%
F02FCylinders, pistons or casings, for combustion engines10%
B01DSeparation6%
F01LCyclically operating valves for machines or engines6%
F01BMachines or engines, in general or of positive-displacement type, e.g. steam engines4%
B22CFoundry moulding2%
B22DCasting of metals2%
PatentTitleYear
11,008,973Engine cooling system including cooled exhaust seats202110,989,136Parent bore cylinder block of an opposed-piston engine202110,619,550Main bearing cap stud configuration and assembly method202010,494,981Combustion pre-chamber device for an internal combustion engine20199,556,778'Waste heat recovery system including a clutched feedpump'20178,616,188'Engine air management system'20138,342,160'Engine air management system'20138,146,574'Engine air management system'20127,240,643'Piston cooling nozzle and positioning method for an internal combustion engine'20076,328,001'Replaceable cylinder liner with improved cooling'20016,116,198'Replaceable cylinder liner with improved cooling'20005,975,060'Dedicated overhead cam shaft for unit injector'19995,806,499'Dedicated overhead cam shaft for unit injector'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2001Patents assigned to CUMMINS ENGINE CO INC (4)· patent assignee history
1998–2021Based in Columbus, IN, US· patent location history
2007–2021Patents assigned to CUMMINS INC (5)· patent assignee history
2012–2013Patents assigned to CUMMINS FILTRATION IP INC (3)· patent assignee history
2012–2013Patents assigned to HECKEL SCOTT P (2)· patent assignee history
2012–2013Patents assigned to HERMAN PETER K (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CUMMINS INC | 5 | 2007–2021 |
| CUMMINS ENGINE CO INC | 4 | 1998–2001 |
| CUMMINS FILTRATION IP INC | 3 | 2012–2013 |
| HECKEL SCOTT P | 2 | 2012–2013 |
| HERMAN PETER K | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Columbus, IN, US | 13 | 1998–2021 |