Inventor · disambiguated record
Douglas K. Stephens
Also filed as: STEPHENS DOUGLAS K
6 granted patents·307 citations·filing 1996–2002
88Inventor score
Files withAGRITEC6
Top patents by PatentIndex Score
6 records- 0190US6375735B1Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processesAGRITEC·Filed 2000·Granted Apr 23, 2002·59 cites·6 claims
- 0290US6114280AHighly activated carbon from caustic digestion of rice hull ash and methodAGRITEC·Filed 1998·Granted Sep 5, 2000·92 cites·10 claims
- 0390US5858911AMethod of producing activated carbonAGRITEC·Filed 1997·Granted Jan 12, 1999·83 cites·1 claims
- 0484US6409817B1Fine-celled foam composition and method having improved thermal insulation and fire retardant propertiesAGRITEC·Filed 2000·Granted Jun 25, 2002·30 cites·10 claims
- 0580US6638354B2Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processesAGRITEC·Filed 2002·Granted Oct 28, 2003·21 cites·4 claims
- 0668US5714000AFine-celled foam composition and methodAGRITEC·Filed 1996·Granted Feb 3, 1998·22 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →