Growing community of inventors

Marana, AZ, United States of America

John M Oldham

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 = 2

John M OldhamRoger C Esplin (1 patent)John M OldhamJohn M Oldham (1 patent)Roger C EsplinRoger C Esplin (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Raytheon Company (1 from 8,181 patents)


1 patent:

1. 8123556 - Low profile compact RF coaxial to planar transmission line interface

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12/20/2025
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