Forward Citations = 14

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5 inventors (with patents filed for the assignee):

Johann Hoell (4 out of 8 patents)

Klaus Reiser (3 out of 10 patents)

Herbert Grabner (3 out of 6 patents)

4. Peter Hoffmann (3 out of 6 patents)

5. Sven Bartels (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 5244065 - Pantograph slipper for current collectors (1993-09-14),

2. 5193656 - Collector shoe for collector and process for producing it (1993-03-16),

3. 5189903 - Sliding strip for collector with rupture detection device (1993-03-02),

4. 5152380 - Collector shoe for collector and process for producing it (1992-10-06),

Hoffmann & Co. Elektrokohle GmbH is a leading manufacturer of carbon brushes, brush holders, slip rings and sealing rings for motors and generators. With over 75 years of experience, the company focuses on providing high-quality products and innovative solutions to meet the needs of various industries worldwide.

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USPTO Data Jan 1 1976 - Dec 16 2025

4 Patents

#1 in Steeg

#593 in Austria

Steeg, Austria

Hoffmann & Co. Elektrokohle Gesellschaft Mbh