Inventor
Thomas R. Sem
Inventor
Minneapolis, MN, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Mprimary
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof18%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles12%
F02DControlling combustion engines12%
F25BRefrigeration machines, plants or systems12%
F25DRefrigerators12%
B01DSeparation6%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for6%
F01MLubricating of machines or engines in general6%
F02BInternal-combustion piston engines6%
F16NLubricating6%
PatentTitleYear
6,871,629'Refrigeration system with low-fuel shutdown'20056,708,507'Temperature control apparatus and method of determining malfunction'20046,037,864'Method for continuously determining the oil change interval for an internal combustion engine'20005,530,647'Method of dynamically determining oil change intervals for internal combustion engines'19965,462,658'Fuel filter system'19955,339,787'Method and apparatus for distributing fuel in a diesel engine'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Patents assigned to WESTINGHOUSE ELECTRIC CORP (1)· patent assignee history
1994–1996Based in Plymouth, MN, US· patent location history
1995–2005Patents assigned to THERMO KING CORP (5)· patent assignee history
2000–2005Based in Minneapolis, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| THERMO KING CORP | 5 | 1995–2005 |
| WESTINGHOUSE ELECTRIC CORP | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Minneapolis, Minnesota, US | 3 | 2000–2005 |
| Plymouth, Minnesota, US | 3 | 1994–1996 |