Growing community of inventors

Naperville, IL, United States of America

John D 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 = 3

John D ChapmanPeter M Gautchier (1 patent)John D ChapmanJohn D Chapman (1 patent)Peter M GautchierPeter M Gautchier (4 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Van Den Bergh Foods Co., Division of Conopco, Inc. (1 from 156 patents)


1 patent:

1. 5208060 - Reduced fat pies and methods of preparing the pies

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1/13/2026
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