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PHOTON CHROMA INC

Overview
  • Total Patents
    13
About

PHOTON CHROMA INC has a total of 13 patent applications. Its first patent ever was published in 1979. It filed its patents most often in United States, EPO (European Patent Office) and Australia. Its main competitors in its focus markets optics are HOFFMAN LIONEL B, TETRAS SA and GRAFOSOL SPA.

Patent filings in countries

World map showing PHOTON CHROMA INCs patent filings in countries
# Country Total Patents
#1 United States 8
#2 EPO (European Patent Office) 2
#3 Australia 1
#4 Brazil 1
#5 Canada 1

Patent filings per year

Chart showing PHOTON CHROMA INCs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Electrography
#2 Cameras

Top inventors

# Name Total Patents
#1 Plumadore John D 12
#2 Plumadore John David 1

Latest patents

Publication Filing date Title
US4676626A Optical system for electrophotographic film camera/reader-verifier
US4595276A Inclined toner flow control system for developing an electrostatic latent image upon a roll cassette, aperture card, or microfiche type electrophotographic film element
US4526850A Diode bias electrophotographic toning system and method
US4461566A Desk-top camera/processor-reader apparatus for electrophotographic film
US4515463A Inclined toner flow control system for developing an electrostatic latent image upon an electrophotographic film
US4461561A Apparatus for imaging and developing electrophotographic microformats
CA1145980A Electrophotographic slide and method of making same
EP0057305A1 Electrographic slide and method of making same
US4392734A Electrophotographic camera
US4249328A Electrophotographic slide and method of making same