Growing community of inventors

Mars, PA, United States of America

Thomas R Walker

Average Co-Inventor Count = 3.00

ph-index = 2

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 = 40

Thomas R WalkerWilliam Thomas Urmson, Jr (2 patents)Thomas R WalkerRonald K Junk (2 patents)Thomas R WalkerThomas R Walker (2 patents)William Thomas Urmson, JrWilliam Thomas Urmson, Jr (14 patents)Ronald K JunkRonald K Junk (5 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Portec, Inc. (2 from 46 patents)


2 patents:

1. 5394958 - Rail lubrication apparatus

2. 5348120 - Rail lubrication apparatus

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as of
12/12/2025
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