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Dayton, OH, United States of America

Ralph R Rigg

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 = 9

Ralph R Rigg ↔ Robert S Hanson (1 patent)Ralph R RiggRalph R Rigg (1 patent)Robert S HansonRobert S Hanson (6 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Gm Global Technolgoy Operations, Inc. (1 from 30,982 patents)


1 patent:

1. 4047393 - Refrigerator forced air condenser filter

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12/21/2025
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