Growing community of inventors

Arlington, VA, United States of America

David M Petka

Average Co-Inventor Count = 3.27

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 = 13

David M PetkaBarry W Johnson (3 patents)David M PetkaDavid C Russell (3 patents)David M PetkaBart A Singer (1 patent)David M PetkaDavid M Petka (3 patents)Barry W JohnsonBarry W Johnson (30 patents)David C RussellDavid C Russell (22 patents)Bart A SingerBart A Singer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Apple Inc. (2 from 41,140 patents)

2. Privaris, Inc. (1 from 23 patents)


3 patents:

1. 10332114 - Methods, systems and apparatuses for secure transactions

2. 9659297 - Biometric identification device

3. 8566250 - Biometric identification device and methods for secure transactions

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as of
1/20/2026
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