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Oshkosh, WI, United States of America

Walter E Madson

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 24

Walter E Madson ↔ Paul E Fowler (1 patent)Walter E MadsonWalter E Madson (1 patent)Paul E FowlerPaul E Fowler (5 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Northwest Environmental Systems, Inc. (1 from 1 patent)


1 patent:

1. D272182 - Fan guard

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as of
12/20/2025
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