Growing community of inventors

Atlanta, GA, United States of America

Charles E 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 = 31

Charles E LittlejohnHenry D Cook (1 patent)Charles E LittlejohnCharles E Littlejohn (1 patent)Henry D CookHenry D Cook (4 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,966 patents)


1 patent:

1. 4406351 - Emergency escape system for use in multistoried buildings

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1/16/2026
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