Growing community of inventors

Fort Payne, AL, United States of America

Paul S Wingerstahn

Average Co-Inventor Count = 1.00

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 = 22

Paul S WingerstahnPaul S Wingerstahn (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Playcore, Inc. (5 from 38 patents)

2. Playcore Wisconsin, Inc. (1 from 74 patents)


6 patents:

1. 8529362 - Elevated hand-held merry-go-round

2. 7874926 - Elevated hand-held merry-go-round

3. 7578745 - Elevated hand-held merry-go-round

4. D568434 - Large hanging and spinning playground device

5. D559935 - Small hanging and spinning playground device

6. D559936 - Tilted hanging and spinning playground device

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as of
12/13/2025
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