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PHILIPS & DU PONT OPTICAL

Overview
  • Total Patents
    89
About

PHILIPS & DU PONT OPTICAL has a total of 89 patent applications. Its first patent ever was published in 1986. It filed its patents most often in Japan, Germany and EPO (European Patent Office). Its main competitors in its focus markets audio-visual technology, machines and surface technology and coating are MAHNAD FARAMARZ, THOMSON ALCATEL GIGADISC and POLYGRAM INT HOLDING.

Patent filings per year

Chart showing PHILIPS & DU PONT OPTICALs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Grobecker Hermann 9
#2 Koop Hermann Dr 7
#3 Heuer Werner 6
#4 Bluethgen Bjoern 5
#5 Ewaldt Helmut 4
#6 Kurkowski Frank 4
#7 Lucht Manfred 4
#8 Langowski Horst-Christian 4
#9 Mons Johannes J 3
#10 Pichler Alois 3

Latest patents

Publication Filing date Title
CN1068673A System for transferring information using information carrier
NL9100366A Method for manufacturing a disc-shaped data carrier, data carrier made according to the method and device for carrying out the method
NL9100248A Device for measuring the reflection and / or transmission of an article.
NL9002594A Master plate.
NL9000323A METHOD FOR STREAMLESSLY depositing a metal layer on a surface from a metallization liquid
DE3942199A1 Quality testing of optical discs - having laser intensity and amplifier gains varied during test cycle
NL8903010A Method and apparatus for removing a flexible product from a bearing
DE3932425A1 PACKAGING FOR AT LEAST ONE PLATE WITH A CENTRAL MEDIUM HOLE
US4964958A Method of producing a metal matrix
DE3927380A1 STORAGE CASSETTE FOR A PLATE WITH A MEDIUM HOLE
EP0341785A1 Optical disc having an antiresonance ring
EP0329122A2 Method for affixing information on read-only optical disks
DE3902862A1 METHOD FOR REMOVING PARTICLES ON SUBSTRATE SURFACES
DE3825592A1 ARRANGEMENT FOR CONTACTING AND HOLDING A GALVANO
DE3825590A1 Master for optical storage media
DE3814706A1 Process for depositing a thin metallic protective layer on an electrotype
DD281279A5 Recording device
DE3801332A1 Use of a data transmission method
DE3737483A1 Method for the reuse of glass substrates for optically readable high-density storage masters
NL8702124A Cassette for optically recorded discs - has spacer card in cd or video disc inner tray to form receptacle for programme notes