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KEYSTONE CAMERA COMPANY INC

Overview
  • Total Patents
    17
About

KEYSTONE CAMERA COMPANY INC has a total of 17 patent applications. Its first patent ever was published in 1959. It filed its patents most often in United States, Switzerland and United Kingdom. Its main competitors in its focus markets optics, audio-visual technology and machines are AMERICAN PROJECTING COMPANY, HEURTIER & CIE SA and ADOX KAMERAWERK G M B H.

Patent filings in countries

World map showing KEYSTONE CAMERA COMPANY INCs patent filings in countries
# Country Total Patents
#1 United States 12
#2 Switzerland 2
#3 United Kingdom 2
#4 Germany 1

Patent filings per year

Chart showing KEYSTONE CAMERA COMPANY INCs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Samuel Silbovitz 4
#2 Kaminski Henry J 4
#3 Israel Nesson 2
#4 Alfredo Ferrari 1
#5 Byong-Ho Ahn 1
#6 Albert Vess 1
#7 Hunerwadel Jean L 1
#8 Peter Schmuck 1
#9 Heden Axei M 1
#10 Greenberg Yale J 1

Latest patents

Publication Filing date Title
US3373950A Reel drive arrangements
GB1049648A Improvements in or relating to control apparatus for camera shutters
US3168743A Motion picture apparatus with variable film claw speed
US3183814A Camera exposure control
US3246942A Motion picture cameras
US3233958A Motion picture sound projector
US3209367A Lens drive mechanism
US3197783A Electric camera control apparatus
US3222007A Apparatus for operating cameras in which component strips of a film are exposed in succession
US3143045A Photographic camera operation control apparatus
US3143031A Editing motion picture projector
US3043205A Camera support and actuating means
US3212098A Method and apparatus for plural row photography of motion pictures without exchange of reels