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KREFFT AKTIEN GES W

Overview
  • Total Patents
    29
About

KREFFT AKTIEN GES W has a total of 29 patent applications. Its first patent ever was published in 1930. It filed its patents most often in Germany, France and Switzerland. Its main competitors in its focus markets thermal processes, furniture and games and mechanical elements are ISPHORDING GERMANY GMBH, INTELL PROPERTIES B V and PERFECTION STOVE CO.

Patent filings in countries

World map showing KREFFT AKTIEN GES Ws patent filings in countries
# Country Total Patents
#1 Germany 19
#2 France 5
#3 Switzerland 3
#4 Austria 1
#5 Denmark 1

Patent filings per year

Chart showing KREFFT AKTIEN GES Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schulze Kurt 4
#2 Wortmann August 2
#3 Thomae Dipl-Ing Rudolf 2
#4 Frege Johannes Dipl Ing 2
#5 Moll Wilhelm 2
#6 Sachse Kurt 2
#7 Felder Georg 1
#8 Salzer Rudolf 1
#9 Buehne Emil 1
#10 Landfermann Karl August Dr Ing 1

Latest patents

Publication Filing date Title
DE1233793B Device for securing gas burners on gas appliances
DE1162309B Ignition and monitoring device with electric gear motor for gas devices of all kinds.
DE1230183B Double-walled kettle with a steam room between the inner and outer walls
DE1155892B Double-walled kettle with a steam jacket between the inner and outer walls, which also serves as a storage space for the operating electrolyte
DE951935C Burner and ignition arrangement for absorption refrigerators whose stove is operated with gas, especially with liquid gas such as propane and butane
DE971403C Valve, especially for liquid gas, for heating and cooking appliances or the like.
DE1017760B Oven with a shutter door made of metal mesh or the like.
DE940143C Dish racks, especially for dishwashers
DE1013304B Show cooling showcase designed as a ready-to-connect device in the shape and size of a counter top
DE1002712B Device for the operation and ignition of a burner arranged in a hardly accessible place, preferably for absorption refrigeration machines
DE1043356B Two-legged cooker suitable for any type of heating in absorption refrigeration machines with a pressure-equalizing auxiliary gas
DE1034199B Stoves in absorption refrigeration machines
DE858531C Gas control valve
DE855534C Gas tap with drive for regulator, in particular membrane tap for liquid gas
DE899516C Arrangement for tone control
DE846907C Coal stove, especially with a stove top plate and in the form of a cabinet
DE843464C Stovetop with shelf
DE837238C Washer-dryer and spin-dryer
DE843745C Gas burner nozzle