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DUMITRESCU IOAN F

Overview
  • Total Patents
    12
About

DUMITRESCU IOAN F has a total of 12 patent applications. Its first patent ever was published in 1972. It filed its patents most often in Romania. Its main competitors in its focus markets optics are ZHUHAI UN-TERN IMAGING PRODUCTS CO LTD, ZHONGSHAN KINGWAY IMAGE TECH CO LTD and FUKADA SATOSHI.

Patent filings in countries

World map showing DUMITRESCU IOAN Fs patent filings in countries
# Country Total Patents
#1 Romania 12

Patent filings per year

Chart showing DUMITRESCU IOAN Fs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Electrography

Top inventors

# Name Total Patents
#1 Dumitrescu Ioan F 11
#2 Bolintineanu Constantin 3
#3 Cojocaru Constantin 3
#4 Bujor Emil 2
#5 Celan Eugen 2
#6 Nitulescu Haralambie 1
#7 Dumitrescu Ioan Florin 1
#8 Herivan Rela 1
#9 Golovanov Carmen 1
#10 Bibis Marian 1

Latest patents

Publication Filing date Title
RO71042A2 Method and device for investigating viable organisms
RO71443A2 Electronooptic electroluminescence microscopy apparatus
RO70182A2 Electronographic picture printing device in television circuit
RO70116A2 Method and apparatus for reactometry by measuring latency time of bioelectroluminescence response
RO70115A2 Reactometry method and appliance by measuring the vasomother reaction time and pilot propulsion speed
RO71027A2 Electroluminiscence spectroscopy apparatus
RO69241B1 Electronography apparatus for the investigation of the human organism
RO69238A2 Method of entrying electronographic image
RO69239A2 Electronography apparatus
RO69269A2 Method of entrying the electronographic image for inert and biological structures
RO70694A2 Method and control equipment and automatic control of electronic industry
RO70502A2 Electronic appliance for automatic control of neurovegetative reactivity