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North St. Paul, MN, United States of America

Rulon A Chappell

Average Co-Inventor Count = 1.14

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 = 23

Rulon A ChappellDonald A Grindstaff (1 patent)Rulon A ChappellRulon A Chappell (4 patents)Donald A GrindstaffDonald A Grindstaff (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Qualcepts Nutrients, Inc. (3 from 3 patents)

2. Nutricepts, Inc. (1 from 3 patents)


4 patents:

1. 7108876 - Shaped cheese reconstruction with transglutaminase

2. 5489329 - Acetic acid-containing wall-coating composition for inhibiting growth of

3. 5415887 - Water-base film forming composition for inhibiting growth of mold and

4. 5391382 - Low dust powdered cellulose

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as of
12/9/2025
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