Growing community of inventors

Mineral, IL, United States of America

Steven R Frank

Average Co-Inventor Count = 4.00

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 = 31

Steven R FrankRobert Todd Swinderman (1 patent)Steven R FrankRichard P Stahura (1 patent)Steven R FrankMichael A Bowman (1 patent)Steven R FrankSteven R Frank (1 patent)Robert Todd SwindermanRobert Todd Swinderman (31 patents)Richard P StahuraRichard P Stahura (7 patents)Michael A BowmanMichael A Bowman (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Martin Engineering Company (1 from 147 patents)


1 patent:

1. 4359150 - Conveyor belt cleaner

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as of
12/20/2025
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