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Princeville, IL, United States of America

James E March

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 = 5

James E March ↔ Max E Butterfield (1 patent)James E March ↔ Robert M Alt, Sr (1 patent)James E MarchJames E March (1 patent)Max E ButterfieldMax E Butterfield (3 patents)Robert M Alt, SrRobert M Alt, Sr (2 patents)
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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. 4072331 - Door latch having three-way actuation means

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1/19/2026
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