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KNUT SCHAEFER

Overview
  • Total Patents
    13
About

KNUT SCHAEFER has a total of 13 patent applications. Its first patent ever was published in 1955. It filed its patents most often in Germany, United States and United Kingdom. Its main competitors in its focus markets optics are INTERNAT PATENT LICENSING CORP, SLAVATA BOHUMIL and FIORENTINI ACHILLE.

Patent filings in countries

World map showing KNUT SCHAEFERs patent filings in countries
# Country Total Patents
#1 Germany 7
#2 United States 4
#3 United Kingdom 2

Patent filings per year

Chart showing KNUT SCHAEFERs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics

Focus technologies

# Technology
#1 Cameras

Top inventors

# Name Total Patents
#1 Schaefer Knut 6
#2 Knut Schaefer 4
#3 Ruhoff Peter 1

Latest patents

Publication Filing date Title
US3183520A Cinematographic camera with snap-spring release mechanism
US3066591A Diaphragm control for photographic apparatus
US3079836A Shutter stopping means in motion picture cameras
US3033074A Film guide structure for cinemato-graphic apparatus
GB803808A Cinematographic apparatus