Inventor
Bertram Obermayer
Inventor
Graz, AT
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Bprimary
F02BInternal-combustion piston engines25%
F02FCylinders, pistons or casings, for combustion engines25%
F01PCooling of machines or engines in general17%
Y02TClimate change mitigation technologies related to transportation17%
F01MLubricating of machines or engines in general8%
F01LCyclically operating valves for machines or engines4%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%
PatentTitleYear
6,928,964'Cylinder head for a liquid-cooled multi-cylinder internal combustion engine'20056,899,063'Cylinder head for a multicylinder liquid-cooled internal combustion engine'20054,989,552'Air-cooled internal combustion engine'19914,412,513'Water-cooled internal combustion engine with direct fuel injection'19834,393,822'Water-cooled, multi-cylinder internal combustion engine'19834,383,502'Water-cooled internal combustion engine using hydraulic-oil lubrication and cooling-water pump'19834,370,957'Assembly of auxiliary equipment for a water-cooled internal combustion engine'19834,365,594'Water-cooled, multi-cylinder internal combustion engine'19824,126,115'Internal combustion engine'19784,092,956'Water cooled internal combustion engine, particularly a diesel engine'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1983Patents assigned to LIST HANS (6)· patent assignee history
1978–1991Based in Graz, AT· patent location history
1983–1991Patents assigned to AVL VERBRENNUNGSKRAFT MESSTECH (2)· patent assignee history
1983Patents assigned to SIMMERING GRAZ PAUKER AG (1)· patent assignee history
2005Patents assigned to AVL LIST GMBH (2)· patent assignee history
2005Based in Hitzendorf, AT· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LIST HANS | 6 | 1978–1983 |
| AVL LIST GMBH | 2 | 2005 |
| AVL VERBRENNUNGSKRAFT MESSTECH | 2 | 1983–1991 |
| SIMMERING GRAZ PAUKER AG | 1 | 1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Graz, AT | 8 | 1978–1991 |
| Hitzendorf, AT | 2 | 2005 |