Growing community of inventors

Carrollton, TX, United States of America

Donald F North

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 = 5

Donald F North ↔ Don J Fisher (1 patent)Donald F NorthDonald F North (1 patent)Don J FisherDon J Fisher (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Peerless Manufacturing Co. (1 from 14 patents)


1 patent:

1. 4526378 - Filter tube gasket

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as of
12/17/2025
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