Inventor · disambiguated record
Charlie J. Schafer
Also filed as: SCHAFER CHARLIE J
7 granted patents·1 pending application·61 citations·filing 2002–2015
84Inventor score
Top patents by PatentIndex Score
8 records- 0192US8746746B1Nestable connectorSCHAFER CHRISTOPHER E·Filed 2013·Granted Jun 10, 2014·17 cites·11 claims
- 0277US10968589B2Water monitoring and control system and method thereofSCHAFER CHARLIE J·Filed 2014·Granted Apr 6, 2021·6 cites·13 claims
- 0367US6715508B2Drainage tile flow regulatorAGRI DRAIN CORP·Filed 2002·Granted Apr 6, 2004·17 cites·17 claims
- 0463US6786234B2Drainage tile flow regulatorAGRI DRAIN CORP·Filed 2004·Granted Sep 7, 2004·10 cites·20 claims
- 0551US8342775B2Groundwater control system with purity sensor and methodAGRI DRAIN CORP·Filed 2005·Granted Jan 1, 2013·2 cites·20 claims
- 0640US8403596B2Groundwater control system and methodSCHAFER CHARLIE J·Filed 2004·Granted Mar 26, 2013·3 cites·11 claims
- 0735US6672626B1Corrugated pipe connection stabilizing apparatusAGRI DRAIN CORP·Filed 2002·Granted Jan 6, 2004·6 cites·16 claims
- 0833US2017089056A1Long Pond Water Management SystemSCHAFER CHARLIE J·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →