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SPECTRADISC CORP

Overview
  • Total Patents
    26
About

SPECTRADISC CORP has a total of 26 patent applications. Its first patent ever was published in 1997. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets audio-visual technology, machines and chemical engineering are OPTICAL DATA INC, THULIN CARTONNERIES and FINEST IND CO LTD.

Patent filings in countries

World map showing SPECTRADISC CORPs patent filings in countries

Patent filings per year

Chart showing SPECTRADISC CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lawandy Nabil M 17
#2 Zepp Charles M 16
#3 Norland Kenneth S 10
#4 Smuk Andrei 7
#5 Krieg-Kowald Marianne 5
#6 Kreig-Kowald Marianne 4
#7 Rollhaus Philip E 3
#8 Ehntholt Daniel J 3
#9 Valentine James R 3
#10 Winkler Irwin C 3

Latest patents

Publication Filing date Title
WO02068179A1 Methods and apparatus for rendering an optically encoded medium unreadable using a volatile substance transport inhibit layer
WO02058056A1 Limiting shelf life for limited play optical information storage media
BR0014918A Methods and apparatus for rendering an optically encoded medium unreadable and resistant to tampering
WO0129828A1 Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant
US6531262B1 Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant
US6338933B1 Methods and apparatus for rendering an optically encoded medium unreadable
US6011772A Machine-readable optical disc with reading-inhibit agent