Growing community of inventors

Antioch, CA, United States of America

Frank Harper

Average Co-Inventor Count = 3.00

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

Frank HarperMichael J Cook (1 patent)Frank HarperDouglas Grant (1 patent)Frank HarperFrank Harper (1 patent)Michael J CookMichael J Cook (55 patents)Douglas GrantDouglas Grant (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Advancing Technologies, LLC (1 from 4 patents)


1 patent:

1. 6374723 - Retrofit drip ring for a hydraulic piston assembly

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as of
1/17/2026
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