Growing community of inventors

Monroe, WI, United States of America

Alex J Hopfensperger

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 = 1

Alex J HopfenspergerAndrew Holverson (1 patent)Alex J HopfenspergerAlex J Hopfensperger (1 patent)Andrew HolversonAndrew Holverson (7 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Monroe Truck Equipment, Inc. (1 from 25 patents)


1 patent:

1. 9840819 - Interlock arrangement for powered devices

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12/19/2025
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