Growing community of inventors

Philadelphia, PA, United States of America

Richard D Varker

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 = 4

Richard D VarkerFranz J Brodmann (1 patent)Richard D VarkerRichard D Varker (1 patent)Franz J BrodmannFranz J Brodmann (6 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. General Refractories Company (1 from 32 patents)


1 patent:

1. 4033783 - Method for making lime-silica insulation from perlite

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as of
12/18/2025
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