Growing community of inventors

Clearwater, MN, United States of America

David C Duncan

Average Co-Inventor Count = 4.00

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 = 98

David C DuncanGeorge Charles Boyer (1 patent)David C DuncanNorman L Beck (1 patent)David C DuncanRonald J Mrugala (1 patent)David C DuncanDavid C Duncan (1 patent)George Charles BoyerGeorge Charles Boyer (4 patents)Norman L BeckNorman L Beck (4 patents)Ronald J MrugalaRonald J Mrugala (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Specialty Equipment Companies, Inc. (1 from 43 patents)


1 patent:

1. 6490872 - Apparatus and a method for clean-in-place for a semi-frozen food dispensing machine

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as of
12/12/2025
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