Company Filing History:

5 out of 140

Dr. Ing. Rudolf Hell Gmbh

patents

1 out of 1

Dr.-ing. Rudolf Hell Gmbh, Firma

patent

1 out of 2

Firma Dr. -ing. Rudolf Hell Gmbh

patents

Years Active: 1978-1986

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7 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4617727 - Electrode comb and method and device for manufacturing (1986-10-21),

2. 4540151 - Device for manufacturing multiple needle recording electrode (1985-09-10),

3. 4414635 - Method and circuit for recognition of colors (1983-11-08),

4. 4257070 - Method for converting a video signal into a black/white signal (1981-03-17),

5. 4234895 - Converting a video signal into a two-level signal (1980-11-18),

6. 4163980 - Recording electrode assembly for use in electrostatic reproduction (1979-08-07),

7. 4110826 - Apparatus and process for color-identification (1978-08-29),

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For the Inventor, By the Inventor

Rudiger Sommer

Location History:

Company Filing History:

Years Active: 1978-1986