Inventor · disambiguated record
Frank Schagen
Also filed as: SCHAGEN FRANK
3 granted patents·1 pending application·59 citations·filing 2000–2007
71Inventor score
Top patents by PatentIndex Score
4 records- 0176US6189161B1Toilet for recreational vehicle with vent for the holding tankTHETFORD CORP INC·Filed 2000·Granted Feb 20, 2001·40 cites·5 claims
- 0267US7293298B2Self-contained sanitary system for a vehicleTHETFORD CORP·Filed 2004·Granted Nov 13, 2007·17 cites·13 claims
- 0342US8516622B2Sanitary system for a vehicle including a removable holding tankSCHAGEN FRANK·Filed 2007·Granted Aug 27, 2013·2 cites·20 claims
- 0435US2005076576A1Service door for a motor vehicleFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →