Growing community of inventors

Cedar Rapids, IA, United States of America

Duane Tackaberry

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 = 4

Duane TackaberryJames M Quarles (1 patent)Duane TackaberryDuane Tackaberry (1 patent)James M QuarlesJames M Quarles (5 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Penwest, Ltd. (1 from 2 patents)


1 patent:

1. 5294453 - Method of removing off-flavor components from hydroxypropyl starch

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as of
12/13/2025
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