Growing community of inventors

Dixon, IL, United States of America

Charles D Hartwig

Average Co-Inventor Count = 1.71

ph-index = 4

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 = 101

Charles D HartwigJason M Long (2 patents)Charles D HartwigGregory S Wahl (1 patent)Charles D HartwigDuncan P Copland (1 patent)Charles D HartwigCharles D Hartwig (4 patents)Jason M LongJason M Long (23 patents)Gregory S WahlGregory S Wahl (18 patents)Duncan P CoplandDuncan P Copland (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wahl Clipper Corporation (4 from 319 patents)


4 patents:

1. 7102328 - Charging stand having open and closed positions

2. D501955 - Hair trimmer stand/storage case

3. 5569168 - Kneader massager having dwell feature

4. D365421 - Rechargeable hair clipper

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as of
12/13/2025
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