Growing community of inventors

Coffeyville, KS, United States of America

Marc David Chapman

Average Co-Inventor Count = 1.64

ph-index = 2

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 = 4

Marc David ChapmanRandall L Long (1 patent)Marc David ChapmanBriton Todd Eastman (1 patent)Marc David ChapmanMichael J Cliff (1 patent)Marc David ChapmanMarc David Chapman (3 patents)Randall L LongRandall L Long (33 patents)Briton Todd EastmanBriton Todd Eastman (13 patents)Michael J CliffMichael J Cliff (12 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Deere + Company (3 from 8,451 patents)


3 patents:

1. 12203530 - Offset planetary gear fastener assembly and planetary gear system

2. 11679674 - Implement coupler for work vehicle

3. 11028917 - Work equipment transmission with gear baffle and method of assembly

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as of
12/12/2025
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