Learn more

DAVOHN CORP

Overview
  • Total Patents
    18
About

DAVOHN CORP has a total of 18 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets electrical machinery and energy, basic materials chemistry and machines are ADVANCED VISION TECH INC, SEBEL S A and SON SEUNG-HYUN.

Patent filings in countries

World map showing DAVOHN CORPs patent filings in countries
# Country Total Patents
#1 United States 6
#2 United Kingdom 5
#3 Canada 3
#4 Germany 2
#5 France 2

Patent filings per year

Chart showing DAVOHN CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Charles Feldman 6
#2 Feldman Charles 5

Latest patents

Publication Filing date Title
US3225238A Cathode ray tube with transparent color screen
US3046154A Method for forming luminescent screens
GB901367A Method of making luminescent screens and systems for producing coloured images therewith
GB900582A Luminescent screens and methods of making same
GB900584A Luminescent screens
US2996404A Zinc phosphate luminescent screens and method of making same
US2998323A Method for making luminescent screens
US2996403A Metal silicate luminescent screens and method of making same
US2996402A Method for making zinc sulfide luminescent screens
CA745108A Luminescent screens and methods of making same
CA729577A System for producing colored images and method of making same
CA701588A Luminescent screen and method of making same