Growing community of inventors

Hamburg, Germany

Stefan Freitag

Average Co-Inventor Count = 3.13

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 16

Stefan FreitagHeiko Tullney (5 patents)Stefan FreitagGünter Wissmann (2 patents)Stefan FreitagChristian Heggemann (1 patent)Stefan FreitagThomas Milewski (1 patent)Stefan FreitagGuenter Wissmann (1 patent)Stefan FreitagPatric Moammer (1 patent)Stefan FreitagStefan Freitag (6 patents)Heiko TullneyHeiko Tullney (66 patents)Günter WissmannGünter Wissmann (14 patents)Christian HeggemannChristian Heggemann (27 patents)Thomas MilewskiThomas Milewski (21 patents)Guenter WissmannGuenter Wissmann (18 patents)Patric MoammerPatric Moammer (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wella Aktiengesellschaft (4 from 433 patents)

2. Tesa Ag (1 from 171 patents)

3. Weidmueller Interface Gmbh Co. Kg (1 from 78 patents)


6 patents:

1. D770317 - LED lights

2. D640002 - Hair drying hood

3. D629968 - Hair drying hood

4. D622444 - Hair drying hood

5. D622445 - Hair drying hood

6. D571404 - Roller dispenser

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as of
12/7/2025
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