Growing community of inventors

Cordova, IL, United States of America

Duane David Franzen, Jr

Average Co-Inventor Count = 4.50

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 = 12

Duane David Franzen, JrMichael Grinnall (3 patents)Duane David Franzen, JrAndrew James McDonnough (3 patents)Duane David Franzen, JrAlan Walter Knapper (2 patents)Duane David Franzen, JrJeffrey Scott Anderson (2 patents)Duane David Franzen, JrPamela Jo Naeve (2 patents)Duane David Franzen, JrDuane David Franzen, Jr (3 patents)Michael GrinnallMichael Grinnall (15 patents)Andrew James McDonnoughAndrew James McDonnough (3 patents)Alan Walter KnapperAlan Walter Knapper (10 patents)Jeffrey Scott AndersonJeffrey Scott Anderson (9 patents)Pamela Jo NaevePamela Jo Naeve (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Custom-pak, Inc. (3 from 45 patents)


3 patents:

1. 10167035 - Blow molded toy cycle

2. 9682739 - Blow molded toy cycle

3. 8899416 - Soft plastic insert for use in protective case

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as of
12/15/2025
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