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Boulder, CO, United States of America

Roy Hennings

Average Co-Inventor Count = 4.20

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 = 6

Roy Hennings ↔ Martin Jay Marotti (1 patent)Roy Hennings ↔ James Lee Lentz (1 patent)Roy Hennings ↔ Roland N Zapfe (1 patent)Roy Hennings ↔ John V Acciaioli (1 patent)Roy Hennings ↔ Richard D Kusel (1 patent)Roy Hennings ↔ William J Schaffer (1 patent)Roy Hennings ↔ Frederick B Froehlich (1 patent)Roy Hennings ↔ Joseph A Dalmas, Jr (1 patent)Roy HenningsRoy Hennings (2 patents)Martin Jay MarottiMartin Jay Marotti (99 patents)James Lee LentzJames Lee Lentz (52 patents)Roland N ZapfeRoland N Zapfe (34 patents)John V AcciaioliJohn V Acciaioli (5 patents)Richard D KuselRichard D Kusel (5 patents)William J SchafferWilliam J Schaffer (2 patents)Frederick B FroehlichFrederick B Froehlich (2 patents)Joseph A Dalmas, JrJoseph A Dalmas, Jr (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. International Business Machines Corporation (2 from 164,197 patents)


2 patents:

1. D322249 - Display unit

2. 4176382 - High performance tape path for a 19 inch tape recorder

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as of
12/27/2025
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