Growing community of inventors

Peoria, IL, United States of America

Francis D Bell

Average Co-Inventor Count = 3.00

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 = 6

Francis D Bell ↔ Robert L Shelby (1 patent)Francis D Bell ↔ Robert L Isaia (1 patent)Francis D BellFrancis D Bell (1 patent)Robert L ShelbyRobert L Shelby (8 patents)Robert L IsaiaRobert L Isaia (3 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Caterpillar Tractor Co. (1 from 1,981 patents)


1 patent:

1. 4223878 - Modular recoil mechanism

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as of
12/20/2025
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