Inventor · disambiguated record
E. Carl Sprengle, Sr.
Also filed as: SPRENGLE E CARL · SPRENGLE SR E CARL
3 granted patents·164 citations·filing 1999–2002
77Inventor score
Files withSMART VENT INC3
Top patents by PatentIndex Score
3 records- 0189US6287050B1Foundation flood gate with ventilationSMART VENT INC·Filed 1999·Granted Sep 11, 2001·66 cites·24 claims
- 0283US6485231B2Foundation flood gate with ventilationSMART VENT INC·Filed 2001·Granted Nov 26, 2002·54 cites·16 claims
- 0378US6692187B2Flood gate for doorSMART VENT INC·Filed 2002·Granted Feb 17, 2004·44 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →