Growing community of inventors

Round Hill, VA, United States of America

Donald P Sengpiehl

Average Co-Inventor Count = 2.14

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 = 368

Donald P SengpiehlScott Dorfman (4 patents)Donald P SengpiehlPatrick A Meenan (1 patent)Donald P SengpiehlRich Thornberg (1 patent)Donald P SengpiehlDonald P Sengpiehl (5 patents)Scott DorfmanScott Dorfman (16 patents)Patrick A MeenanPatrick A Meenan (31 patents)Rich ThornbergRich Thornberg (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Oath Inc. (2 from 635 patents)

2. Verizon Patent and Licensing Inc. (1 from 6,574 patents)

3. Aol Inc. (1 from 729 patents)

4. Aol LLC, a Delaware Limited Liability Company (1 from 69 patents)


5 patents:

1. 11405380 - Systems and methods for using imaging to authenticate online users

2. 10708257 - Systems and methods for using imaging to authenticate online users

3. 9923885 - Systems and methods for using imaging to authenticate online users

4. 9130929 - Systems and methods for using imaging to authenticate online users

5. 7383339 - Local proxy server for establishing device controls

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1/9/2026
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