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GRACHEV N I

Overview
  • Total Patents
    12
About

GRACHEV N I has a total of 12 patent applications. Its first patent ever was published in 1931. It filed its patents most often in USSR (Union of Socialist Soviet Republics). Its main competitors in its focus markets environmental technology are SLUZHBA ELEK ENERGET KHOZ VOS, PROIZV OB EHLEKTROKHIMICHESKIJ and JIE SUN.

Patent filings in countries

World map showing GRACHEV N Is patent filings in countries
# Country Total Patents
#1 USSR (Union of Socialist Soviet Republics) 12

Patent filings per year

Chart showing GRACHEV N Is patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Grachev N I 12

Latest patents

Publication Filing date Title
SU112900A1 Pipe cleaning machine
SU109737A1 Pipe Lifter for lifting and maintaining gas pipelines during their cleaning and insulation
SU82501A1 Secondary scale for pressure gauges
SU78698A1 Device for cold bending large diameter pipes
SU75758A1 Pipe cutter for oblique pipe sections along the copier with simultaneous formation of a chamfer for welding on this section
SU75742A1 Device for editing the ovals of the ends of the pipes being welded
SU79322A1 Automatic adjustment of the gap between the rolls
SU55727A1 Gas generator
SU46873A1 Door for the coke oven chamber
SU48986A1 The method of obtaining a mixed petroleum gas
SU29467A1 The shutter for the loading opening of the coking chamber
SU31408A1 Coke oven door