Growing community of inventors

Kelkheim, Germany

Dirk Freund

Average Co-Inventor Count = 6.52

ph-index = 5

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 = 65

Dirk FreundFred Dieter Schnak (9 patents)Dirk FreundBrigitte Harttmann (7 patents)Dirk FreundFrank Kressmann (6 patents)Dirk FreundMartin Giersiepen (6 patents)Dirk FreundStefan Hubert Hollinger (4 patents)Dirk FreundUlrich Heck (4 patents)Dirk FreundMartin Simeth (3 patents)Dirk FreundGerrit Rönneberg (3 patents)Dirk FreundUwe Schaaf (2 patents)Dirk FreundTorben Kruch (2 patents)Dirk FreundDieter Wunder (2 patents)Dirk FreundGerrit Rönneberg (2 patents)Dirk FreundRainer Hans (1 patent)Dirk FreundSiegfried Zellermayer (1 patent)Dirk FreundChristoph Rennefeld (1 patent)Dirk FreundStefan Hollinger (0 patent)Dirk FreundDirk Freund (9 patents)Fred Dieter SchnakFred Dieter Schnak (24 patents)Brigitte HarttmannBrigitte Harttmann (9 patents)Frank KressmannFrank Kressmann (16 patents)Martin GiersiepenMartin Giersiepen (6 patents)Stefan Hubert HollingerStefan Hubert Hollinger (18 patents)Ulrich HeckUlrich Heck (4 patents)Martin SimethMartin Simeth (9 patents)Gerrit RönnebergGerrit Rönneberg (9 patents)Uwe SchaafUwe Schaaf (20 patents)Torben KruchTorben Kruch (2 patents)Dieter WunderDieter Wunder (2 patents)Gerrit RönnebergGerrit Rönneberg (2 patents)Rainer HansRainer Hans (8 patents)Siegfried ZellermayerSiegfried Zellermayer (1 patent)Christoph RennefeldChristoph Rennefeld (1 patent)Stefan HollingerStefan Hollinger (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Braun Gmbh (5 from 1,012 patents)

2. The Gillette Company (2 from 2,654 patents)

3. Kaz Usa, Inc. (2 from 27 patents)

4. Kaz Europe Sa (0 patent)


9 patents:

1. 7963921 - Method and measuring device for determining blood pressure

2. 7703209 - Powered wet-shaving razor

3. 7628759 - Blood pressure measurement device

4. 7367126 - Powered wet-shaving razor

5. 7214193 - Method and measuring device for determining blood pressure

6. 6893402 - Method and measuring device for determining blood pressure

7. 6843773 - Blood pressure monitoring device and method of manufacturing a parts mounting module of a blood pressure monitoring device

8. 6712769 - Blood pressure monitoring device with inclination sensor

9. 6559625 - Circuit arrangement and electrical appliance with an inductive load and a buck converter

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as of
12/5/2025
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