Growing community of inventors

Upland, CA, United States of America

David Littlejohn

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 = 0

David LittlejohnJerry Quaresma (1 patent)David LittlejohnDavid Littlejohn (1 patent)Jerry QuaresmaJerry Quaresma (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Monogram Aerospace Fasteners, Inc. (1 from 23 patents)


1 patent:

1. 11421724 - Flush-break blind fastener

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as of
12/19/2025
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