Learn more

POLYGRAM GMBH

Overview
  • Total Patents
    223
About

POLYGRAM GMBH has a total of 223 patent applications. Its first patent ever was published in 1970. It filed its patents most often in Germany, EPO (European Patent Office) and Japan. Its main competitors in its focus markets audio-visual technology, machines and packaging and shipping are THOMSON ALCATEL GIGADISC, SONY DISC & DIGITAL SOLUTIONS and KIYKO VADIM VENIAMINOVICH.

Patent filings per year

Chart showing POLYGRAM GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bluethgen Bjoern 20
#2 Grobecker Hermann 15
#3 Heuer Werner 13
#4 Nusselder Frederik B 10
#5 Zielasek Adelbert 9
#6 Becker Johann 8
#7 Stecher Helmut Dipl Ing 8
#8 Schueddekopf Hans 7
#9 Soeding Horst Dipl Phys 7
#10 Kremzow Martin Dipl Chem 6

Latest patents

Publication Filing date Title
DE3621056A1 METHOD FOR ORIENTING THE ROTATION OF ROTATING OR POSITIONING OF SLIDING OBJECTS
DE3600778A1 METHOD FOR TREATING AND / OR PROCESSING TREATMENT LIQUIDS
DE3540140A1 Packaging for information carriers
EP0188663A2 Tray for receiving and storing a rigid information disc and combination of such a tray with a storing cassette
DE3527885A1 Reproduction device for optical storage discs
DE3523809A1 METHOD FOR TIME COMPRESSION OF INFORMATION IN DIGITAL FORM
DE3520220A1 METHOD FOR PRODUCING A WRITABLE OPTICAL DISK
DE3515602A1 Testing device for optically readable information carriers in disk form
DE3511712A1 Plate-shaped information carrier and method for its production
DE3511711A1 Reprocessing high-quality plastics from waste and scrap workpieces
DE3501134A1 Peg-shaped holder
DE3439301A1 Production process for information carriers in disk form
DE3428599A1 Process for producing optically readable information carriers in disk form
DE3425578A1 OPTICALLY READABLE DISK-SHAPED INFORMATION CARRIER WITH HIGH STORAGE DENSITY
DE3425579A1 Storage cassette for information carriers of high packing density in disc form
DE3424626A1 Method for the error-protected transmission of digital information
CA1218450A Storage cassette for two or more disk-shaped high memory density information carriers
DE3342160A1 NICKELGALVANO IN THE FORM OF A PRESS OR MAINTENANCE MATRIX
DE3341628A1 DEVICE ARRANGEMENT FOR DETECTING ERRORS IN DISK-SHAPED INFORMATION CARRIERS
DE3331248A1 Optical device for the production testing of optically readable disc-type information media