Growing community of inventors

Matthews, NC, United States of America

Frank H Campbell

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 = 15

Frank H Campbell ↔ Edward A Burkard (1 patent)Frank H Campbell ↔ Larry W Kingston (1 patent)Frank H Campbell ↔ Robert J Piasecki (1 patent)Frank H CampbellFrank H Campbell (1 patent)Edward A BurkardEdward A Burkard (9 patents)Larry W KingstonLarry W Kingston (4 patents)Robert J PiaseckiRobert J Piasecki (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. National Gypsum Company (1 from 155 patents)


1 patent:

1. 6221151 - Gypsum set accelerator and method of making the same

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as of
12/13/2025
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