Growing community of inventors

Grand Rapids, MI, United States of America

William S Portzline

Average Co-Inventor Count = 1.00

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 = 120

William S PortzlineWilliam S Portzline (7 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Wolverine Outdoors, Inc. (7 from 311 patents)


7 patents:

1. D1041858 - Footwear upper

2. D1033851 - Footwear upper

3. D1025573 - Footwear upper

4. D1020216 - Footwear upper

5. D1017212 - Footwear upper

6. D1001437 - Footwear sole

7. D944508 - Footwear sole

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as of
12/15/2025
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