Growing community of inventors

Dundee, OR, United States of America

John W Spencer

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 = 41

John W Spencer ↔ Barry S Young (1 patent)John W Spencer ↔ Richard W Hanson (1 patent)John W Spencer ↔ John W Lewis (1 patent)John W SpencerJohn W Spencer (1 patent)Barry S YoungBarry S Young (11 patents)Richard W HansonRichard W Hanson (5 patents)John W LewisJohn W Lewis (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mdt Corporation (1 from 51 patents)


1 patent:

1. D361438 - Dental patient chair

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12/19/2025
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