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COPYGUARD ENTERPRISES

Overview
  • Total Patents
    23
About

COPYGUARD ENTERPRISES has a total of 23 patent applications. Its first patent ever was published in 1988. It filed its patents most often in EPO (European Patent Office), Netherlands and United States. Its main competitors in its focus markets audio-visual technology are XIAODONG YANG, HONG MIN CHEOL and LEONTARIS ATHANASIOS.

Patent filings per year

Chart showing COPYGUARD ENTERPRISESs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Audio-visual technology

Focus technologies

# Technology
#1 Television

Top inventors

# Name Total Patents
#1 Wijnen Arie Marinus 11
#2 Wijnen Arie M 3
#3 Winjen Marinus Arie 1
#4 Marinus Wijnen Arie 1
#5 Arie Marinus Wijnen 1

Latest patents

Publication Filing date Title
US5673356A Method and an apparatus for preventing unauthorized recording on tapes on video programs
NL9000951A Method and apparatus for preventing unlawful transmission of image signals
GR890100791A Automatically controlled video camera
ES2019175A6 Improvements made to a video chamber with automatic light intensity control
NL8802494A Method and apparatus for preventing unlawful tape of image programs
NL8802082A Video camera with automatic strength control.