Growing community of inventors

Los Angeles, CA, United States of America

Marc Schumann

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 = 8

Marc SchumannMichael V Powers (1 patent)Marc SchumannMarc Schumann (1 patent)Michael V PowersMichael V Powers (15 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Peavey Electronics Corporation (1 from 107 patents)


1 patent:

1. D317320 - Guitar peghead

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as of
12/26/2025
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