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Danville, CA, United States of America

Robert Mainhardt

Average Co-Inventor Count = 1.00

ph-index = 2

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 = 82

Robert MainhardtRobert Mainhardt (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)

2. Trebor Incorporated (1 from 4 patents)


2 patents:

1. 4728037 - Safe, effective self-defense device

2. 4644930 - Gun for firing a variety of projectiles

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as of
12/20/2025
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