Growing community of inventors

Forest Lake, MN, United States of America

Darvin Richard Bethke

Average Co-Inventor Count = 1.29

ph-index = 3

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 = 30

Darvin Richard BethkeJames L Warmus (2 patents)Darvin Richard BethkeDavid R Emmert (1 patent)Darvin Richard BethkeLisa Spadoni (1 patent)Darvin Richard BethkeDarvin Richard Bethke (6 patents)James L WarmusJames L Warmus (37 patents)David R EmmertDavid R Emmert (6 patents)Lisa SpadoniLisa Spadoni (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Moore Wallace North America, Inc. (4 from 24 patents)

2. Moore North America, Inc. (2 from 61 patents)


6 patents:

1. 8215538 - Double postcard pressure seal form construction

2. 7748602 - Forms containing removable hang tags and methods of producing the same

3. 7681780 - Foldable postcard form having a removable label

4. 7083079 - Double postcard pressure seal form construction

5. 6557748 - Reverse eccentric double parallel pressure seal business form

6. 6227536 - Receiving tray insert

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as of
1/10/2026
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