Growing community of inventors

Charlotte, NC, United States of America

Donald Matthew Johnson

Average Co-Inventor Count = 2.82

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 = 6

Donald Matthew JohnsonDavid P Christianson (3 patents)Donald Matthew JohnsonBenoit Perreau (2 patents)Donald Matthew JohnsonBrian Roman Dobeck (1 patent)Donald Matthew JohnsonZachary Cody Hazelwood (1 patent)Donald Matthew JohnsonMerril F Bradshaw (1 patent)Donald Matthew JohnsonDonald Matthew Johnson (4 patents)David P ChristiansonDavid P Christianson (18 patents)Benoit PerreauBenoit Perreau (6 patents)Brian Roman DobeckBrian Roman Dobeck (11 patents)Zachary Cody HazelwoodZachary Cody Hazelwood (3 patents)Merril F BradshawMerril F Bradshaw (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Checkpoint Systems, Inc. (4 from 310 patents)


4 patents:

1. 9982464 - Security device with multiple control states

2. 9816297 - Security device with multiple control states

3. 9443406 - Dual mode security tags

4. 9299232 - Security device with dual use transformer

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idiyas.com
as of
12/5/2025
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