Growing community of inventors

Hillard, OH, United States of America

Karl F Graff

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

Karl F GraffMatthew A Short (1 patent)Karl F GraffKarl F Graff (1 patent)Matthew A ShortMatthew A Short (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cumberland & Western Resources, LLC (1 from 4 patents)


1 patent:

1. 9669471 - Devices for isolating acoustic vibrations in metalworking systems

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12/17/2025
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