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HERMAN CHRISTENSEN JENS

Overview
  • Total Patents
    11
About

HERMAN CHRISTENSEN JENS has a total of 11 patent applications. Its first patent ever was published in 1904. It filed its patents most often in United States and Canada. Its main competitors in its focus markets optics and machines are GASPAR BELA, KRAYN ROBERT and SCOTT GRAPHICS.

Patent filings in countries

World map showing HERMAN CHRISTENSEN JENSs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Canada 1

Patent filings per year

Chart showing HERMAN CHRISTENSEN JENSs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machines

Top inventors

# Name Total Patents
#1 Herman Christensen Jens 11

Latest patents

Publication Filing date Title
US1709563A Colored picture and method of producing the same
US1564202A Method of producing water-insoluble multicolored screens
US1486635A Multicolor screen and method of producing the same
US1565256A Method of producing photographic copies by means of phosphorescent substances
US1472048A Method of hardening of photographic films
US1517049A Film and method for the production of colored pictures
US1447759A Sensitized photographic element
US1373053A Method and apparatus for producing colored photographic pictures
CA92621A Match making process