Inventor · disambiguated record
Donald P. Sengpiehl
Also filed as: SENGPIEHL DONALD P
5 granted patents·405 citations·filing 2002–2020
83Inventor score
Top patents by PatentIndex Score
5 records- 0196US7383339B1Local proxy server for establishing device controlsAOL LLC·Filed 2002·Granted Jun 3, 2008·368 cites·71 claims
- 0294US11405380B2Systems and methods for using imaging to authenticate online usersVERIZON PATENT & LICENSING INC·Filed 2020·Granted Aug 2, 2022·4 cites·20 claims
- 0394US9130929B2Systems and methods for using imaging to authenticate online usersAOL INC·Filed 2013·Granted Sep 8, 2015·25 cites·20 claims
- 0488US10708257B2Systems and methods for using imaging to authenticate online usersOATH INC·Filed 2018·Granted Jul 7, 2020·4 cites·19 claims
- 0585US9923885B2Systems and methods for using imaging to authenticate online usersOATH INC·Filed 2015·Granted Mar 20, 2018·4 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →