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Bloomfield Hills, MI, United States of America

Howard H Chapman

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 = 14

Howard H ChapmanRobert F Chapman (1 patent)Howard H ChapmanHoward H Chapman (1 patent)Robert F ChapmanRobert F Chapman (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Eagle Boring, Inc. (1 from 1 patent)


1 patent:

1. 4783880 - Demountable urethane caster wheel tire

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as of
12/31/2025
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