Inventor · disambiguated record
David K. Douden
Also filed as: DOUDEN DAVID K
5 granted patents·146 citations·filing 1985–1990
83Inventor score
Files withMINNESOTA MINING & MFG5
Top patents by PatentIndex Score
5 records- 0186US4971697AThin silica flakes and method of makingMINNESOTA MINING & MFG·Filed 1989·Granted Nov 20, 1990·39 cites·10 claims
- 0275US4657810AFired hollow ceramic spheroidsMINNESOTA MINING & MFG·Filed 1985·Granted Apr 14, 1987·43 cites·4 claims
- 0373US5104632AMethod of making thin silica flakesMINNESOTA MINING & MFG·Filed 1990·Granted Apr 14, 1992·34 cites·13 claims
- 0452US4769189AProcess for making hollow, ceramic spheroidsMINNESOTA MINING & MFG·Filed 1986·Granted Sep 6, 1988·19 cites·9 claims
- 0545US4985380AMethod of making thin refractory flakesMINNESOTA MINING & MFG·Filed 1989·Granted Jan 15, 1991·11 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →