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DULCHEVSKIJ D A

Overview
  • Total Patents
    24
About

DULCHEVSKIJ D A has a total of 24 patent applications. Its first patent ever was published in 1922. It filed its patents most often in USSR (Union of Socialist Soviet Republics). Its main competitors in its focus markets environmental technology are TATSU KUNIYOSHI, TS PROIZV T PREDPR REMONTU and YOMIURI SHINBUNSHA KK.

Patent filings in countries

World map showing DULCHEVSKIJ D As patent filings in countries
# Country Total Patents
#1 USSR (Union of Socialist Soviet Republics) 24

Patent filings per year

Chart showing DULCHEVSKIJ D As patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Dulchevskij D A 24
#2 Nikitin V P 1
#3 Tkachenko F S 1
#4 Obukhov A V 1
#5 Emelyanov N P 1

Latest patents

Publication Filing date Title
SU111897A1 Vibro-arc welding head
SU74360A1 Method of welding rods
SU54824A1 Device for surfacing flange bandages of wagon wheels
SU32645A1 Device for automatic reversing the supply of electrode wire in electric arc welders
SU33235A1 Device for moving the item to be welded or welding table
SU39286A1 Mechanism for automatic feeding of electrode wire during electric arc welding
SU29557A1 Device for automatic feeding of electrode wire during electric arc welding
SU29556A1 Mechanism for automatic feeding of electrode wire during electric arc welding
SU21488A1 Recording device for monitoring and recording of electric welding
SU26523A1 Metallization method
SU24632A1 Electric gas arc furnace
SU15216A1 The method of hot electric cast iron welding
SU13812A1 Device for electrical welding, closed arc arc
SU13780A1 Electric arc welding method
SU10876A1 Electric arc mode
SU14131A1 Apparatus for electrical grouting
SU11533A1 Arc Welding Device
SU10578A1 Method of electric arc welding of copper
SU13204A1 Automatic device for supplying welding electrode
SU5709A1 Instrument for automatic adjustment of arc length and electrode feed for electric arc welding