Inventor

Helmut Wulf

Inventor

Ostfildern, DE

Overview

24→

Patents

1976–1991

Patent span

Performing operations

Primary field (CPC B)

Patents· 24 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B62Dprimary

B62DMotor vehicles14%

B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles11%

F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact11%

Y10TTechnical subjects covered by former us classification11%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for7%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application5%

B60TVehicle brake control systems or parts thereof4%

B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles4%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%

B08BCleaning in general2%

PatentTitleYear

5,016,705'Passenger compartment heating system, in particular bus heating system'1991 4,936,225'Track-guidable omnibus'1990 4,773,476'Heat pipe of aluminum, steel or gray cast iron'1988 4,693,301'Method for heating a road by means of geothermally fed heating installation as well as a road-heating installation for carrying out the method'1987 4,613,073'Compound glass pane construction and method for heating the same'1986 4,567,817'Exhaust-gas offtake for a track-guided vehicle propelled by combustion-energy'1986 4,532,894'Heating arrangement for electrically driven vehicles'1985 4,393,922'Engine unit with lubricant cooling'1983 4,389,945'Transverse guide roller arrangement for a track guided vehicle'1983 4,296,796'Heat transfer system'1981 4,295,520'Heat transfer system'1981 4,287,830'Vehicle adapted to be guided on tracks for the public local passenger traffic with pivotal rear axle and longitudinal guide members for such axle'1981 4,271,764'Vehicle adapted to be guided on tracks for the public local passenger traffic with pivotal rear axle and longitudinal guide members for such axle'1981 4,270,405'Steering mechanism with time derivation'1981 4,213,396'Traffic system with drive channel and road vehicles mechanically cross guided-therein'1980 4,206,605'Installation for the power assist of actuating devices in motor vehicles, especially in a hydraulic brake system'1980 4,140,173'Heating device'1979 4,097,752'Power supply of installations driven by internal combustion engines, especially of motor vehicles'1978 4,092,931'Positive guide mechanism for road vehicles with non-turnable wheels'1978 4,087,047'Heating unit for automotive vehicles'1978 4,067,247'Steering mechanism with derivative action timer'1978 4,026,580'Temperature maintaining device for safety gas cushion'1977 3,947,057'Monitoring system for a steering wheel mounted air bag gas source'1976 3,944,250'Automatically inflatable gas cushion for the protection of the passengers of vehicles'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1991Patents assigned to DAIMLER BENZ AG (24)· patent assignee history

1976–1980Based in Nellingen, DE· patent location history

1978–1991Based in Ostfildern, DE· patent location history

1986Based in Ostfilderstadt, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DAIMLER BENZ AG	24	1976–1991

Locations

Location	Patents	Span
Ostfildern, DE	17	1978–1991
Nellingen, DE	6	1976–1980
Ostfilderstadt, DE	1	1986