Growing community of inventors

Madison, WI, United States of America

John P Van Roy

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 4

John P Van Roy ↔ Nathan Adam Hughes (2 patents)John P Van RoyJohn P Van Roy (2 patents)Nathan Adam HughesNathan Adam Hughes (7 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Enerpac Tool Group Corp. (1 from 20 patents)

2. Enerpac Tool Corp. (1 from 1 patent)


2 patents:

1. D890815 - Pump

2. D880530 - Pump

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as of
1/13/2026
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