Inventor · disambiguated record
David W. Schropfer
Also filed as: SCHROPFER DAVID W · SCHROPFER DAVID WALDRON
2 granted patents·3 pending applications·26 citations·filing 1991–2021
57Inventor score
Top patents by PatentIndex Score
5 records- 0155US9767265B2Authentication with parental control functionalityANCHOR ID INC·Filed 2015·Granted Sep 19, 2017·2 cites·16 claims
- 0249US5090735ASeasonal gameMEANEY ENTERPRISES INC·Filed 1991·Granted Feb 25, 1992·24 cites·12 claims
- 0346US2008313077A1System and method for coordinating charitable contributionsSCHROPFER DAVID W·Filed 2008·Application pending·0 cites
- 0435US2022417234A1Host-initiated authentication system and methodANCHOR ID INC·Filed 2021·Application pending·0 cites
- 0529US2018375847A1Stored value user identification system using blockchain or math-based functionANCHORID INC·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →