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Gladstone, MO, United States of America

David Niel Johnson

Average Co-Inventor Count = 3.00

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 = 3

David Niel JohnsonJennifer R Garbos (3 patents)David Niel JohnsonScott A Schimke (3 patents)David Niel JohnsonDavid Niel Johnson (3 patents)Jennifer R GarbosJennifer R Garbos (22 patents)Scott A SchimkeScott A Schimke (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hallmark Cards, Inc. (3 from 233 patents)


3 patents:

1. 12288113 - Signature-based unique identifier

2. 11900194 - Signature-based unique identifier

3. 11263503 - Signature-based unique identifier

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as of
12/20/2025
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