Growing community of inventors

Dowagiac, MI, United States of America

Brian Opfer

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 = 0

Brian OpferDavid E Heitzmann (1 patent)Brian OpferBrian Opfer (1 patent)David E HeitzmannDavid E Heitzmann (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Morryde International, Inc. (1 from 21 patents)


1 patent:

1. 11701930 - Trailer coupler assemblies and related methods

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as of
12/26/2025
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