Growing community of inventors

Troy, MI, United States of America

John F Kopera

Average Co-Inventor Count = 3.00

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 = 11

John F KoperaJames P Carr (1 patent)John F KoperaWilliam E Lawson (1 patent)John F KoperaJohn F Kopera (1 patent)James P CarrJames P Carr (2 patents)William E LawsonWilliam E Lawson (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. US Government As Represented by the Secretary of the Army (1 from 8,684 patents)


1 patent:

1. 3930553 - Track tension control

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12/19/2025
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