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RUHRGAS AG

Overview
  • Total Patents
    581
About

RUHRGAS AG has a total of 581 patent applications. Its first patent ever was published in 1930. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets thermal processes, measurement and materials and metallurgy are PILLARD CHAUFFAGE, NAT MACHINE WORKS and SURFACE COMB COMPANY INC.

Patent filings per year

Chart showing RUHRGAS AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Korsmeier Wilhelm 47
#2 Weid Manfred 18
#3 Jannemann Theo 18
#4 Altemark Detlef Dr Ing 18
#5 Wolf Dieter 17
#6 Sommers Hans 17
#7 Altemark Detlef 16
#8 Berg Hans 16
#9 Lembser Gerhard 12
#10 Kuehn Friedhelm 12

Latest patents

Publication Filing date Title
EP1445534A1 Heating system for buildings, in particular for green houses
DE10314726A1 Arrangement for heating of especially greenhouses has combustion chamber connected to burner plate and converges in flow direction of exhaust gases, and cylindrical burner pipe is connected to combustion chamber
DE10303304A1 Production of long-chain, branched-chain and/or cyclic hydrocarbons comprises contacting a lower haloalkane with an oxygen-free salt melt containing an electrophile and a reducing agent
DE10247840A1 Heater element for a thermo-welding unit, comprises a housing with a heatable edge section, a gas burner unit and a suction unit
EP1229345A2 System for Determining the Position of Construction Vehicles or Earth Moving Equipment
DE10158462A1 Device for regulating forward flow temperature in heating circuit has actuator in form of valve in bypass line connected to forward and return lines; valve has thermal actuator drive
DE10158148A1 Water heater for running hot water and central heating has heat exchanger fitted concentrically round combustion chamber and/or exhaust pipe
DE10149701A1 High pressure gas container, especially for natural gas, has two container sections welded together at a dividing wall, with a passage opening through the wall and a filling/draining connection at one section
DE10149149A1 Method and device for heating a plasticizing cylinder
DE10132526A1 Production of alkane derivatives from alkane, especially methanol from methane, involves oxidative reaction with sulfur trioxide to form alkyl sulfate, reaction with auxiliary acid and separation of the resulting ester
DE10130981A1 Illuminating and heating plants in building, especially in greenhouses, involves using incandescent element that emits light and consists of metal that glows when heat is applied
DE10121955A1 System for determining position of construction vehicles or equipment with earth-moving appliances, includes GPS system for determining position of construction vehicles
DE10121641A1 Method and device for determining the gas quality of a natural gas
DE10117617A1 System for storing fluid in underground hollow chamber comprises storage chamber for displacement fluid formed as underground hollow chamber
DE10103206A1 Method and device for producing a CO¶2¶-containing gas mixture for fertilizing plants in a greenhouse
DE10028670A1 Burner plate for flat burner has mixture ducts each adjoined on outlet side by cross-sectional expansion so that flame burns therein with reduced specific thermal capacity
DE10028669A1 Individually-controlled gas heating panel modules for continuously-moving sheet materials, are arranged in rows and connected to mixing system for fuel and oxidant
DE10023635A1 Method and device for the combustion-free determination of the calorific value or the Wobbe number of a natural gas
DE10021994A1 Arrangement for determining the pipe/ground potential on cathodically protected pipelines comprises measuring value receivers for acquiring measured and reference values for the pipe/ground potential
DE10016473A1 Flow straightener