Learn more

HELL RUDOLF GMBH

Overview
  • Total Patents
    125
About

HELL RUDOLF GMBH has a total of 125 patent applications. Its first patent ever was published in 1972. It filed its patents most often in France, Italy and Australia. Its main competitors in its focus markets audio-visual technology, textiles and paper and optics are HELL RUDOLF DR ING GMBH, HELL R GMBH and MUSTEK SYSTEMS INC.

Patent filings per year

Chart showing HELL RUDOLF GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wellendorf Klaus 6
#2 Balzeit Ralf 3
#3 Hennig Eberhard 3
#4 Fels Werner 3
#5 Beisswenger Siegfried 2
#6 Jung Eggert 2
#7 Baar Valter 2
#8 Jurgensen Heinrich 2
#9 Gesell Reinhard 2
#10 Preub Dieter 2

Latest patents

Publication Filing date Title
US4719474A Apparatus for imaging text and graphics on photosensitive material
US4499489A Production of screen printing blocks
DD204345A5 High constant sprayer for loaded particles
WO8201802A1 Device for controlling discharge lamps intended to the reading of documents
WO8201787A1 Method for engraving by means of an electron beam
WO8201452A1 Installation for regulating the speed of droplets in ink printers
US4255761A Apparatus for mixing image signals to obtain a printing master
YU284677A Electronic device for light matching
GB1578047A Arrangement for the reproduction of screened continuous-toe pictures
DD129830A5 Method for digital color correction in color recording
US3935584A Device for handling photographic film between a cassette and an exposure reproduction apparatus