Inventor
Helmut Kreeb
Inventor
Meersburg, DE
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F28Dprimary
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact20%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles10%
E01CConstruction of, or surfaces for, roads, sports grounds, or the like10%
F24DDomestic- or space-heating systems, e.g. central heating systems10%
F24TGeothermal collectors10%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application10%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
5,016,705'Passenger compartment heating system, in particular bus heating system'19914,773,476'Heat pipe of aluminum, steel or gray cast iron'19884,693,301'Method for heating a road by means of geothermally fed heating installation as well as a road-heating installation for carrying out the method'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1991Patents assigned to DAIMLER BENZ AG (3)· patent assignee history
1987–1991Based in Meersburg, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAIMLER BENZ AG | 3 | 1987–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Meersburg, DE | 3 | 1987–1991 |