Growing community of inventors

Wyoming, MI, United States of America

Charles Schalk

Average Co-Inventor Count = 2.00

ph-index = 3

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 = 38

Charles SchalkSteffen Lipsky (4 patents)Charles SchalkCharles Schalk (4 patents)Steffen LipskySteffen Lipsky (8 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Haworth, Inc. (4 from 485 patents)


4 patents:

1. D871120 - Privacy screen

2. D805333 - Shelving unit

3. D803601 - Privacy screen assembly

4. D779237 - Privacy screen assembly

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as of
12/6/2025
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