Growing community of inventors

Barrington, NH, United States of America

Frederick H Littlefield

Average Co-Inventor Count = 5.00

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

Frederick H Littlefield ↔ John R Sanford (1 patent)Frederick H Littlefield ↔ Shawn Wayne Johnson (1 patent)Frederick H Littlefield ↔ Adam M Alevy (1 patent)Frederick H Littlefield ↔ Eugene MacDonald (1 patent)Frederick H LittlefieldFrederick H Littlefield (1 patent)John R SanfordJohn R Sanford (71 patents)Shawn Wayne JohnsonShawn Wayne Johnson (6 patents)Adam M AlevyAdam M Alevy (4 patents)Eugene MacDonaldEugene MacDonald (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cushcraft Corporation (1 from 15 patents)


1 patent:

1. 7154445 - Omni-directional collinear antenna

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as of
1/6/2026
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