Inventor · disambiguated record
Douglas A. Hanggi
Also filed as: HANGGI DOUGLAS A · HANGGI DOUGLAS ALAN
20 granted patents·1,378 citations·filing 1989–2019
96Inventor score
Top patents by PatentIndex Score
20 records- 0198US6899948B2Dental materials with nano-sized silica particles3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted May 31, 2005·183 cites·28 claims
- 0298US6387981B1Radiopaque dental materials with nano-sized particles3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted May 14, 2002·459 cites·58 claims
- 0397US6353037B1Foams containing functionalized metal oxide nanoparticles and methods of making same3M INNOVATIVE PROPERTIES CO·Filed 2000·Granted Mar 5, 2002·91 cites·15 claims
- 0496US9657038B2Guanidine-functionalized particles and methods of making and using3M INNOVATIVE PROPERTIES CO·Filed 2013·Granted May 23, 2017·13 cites·15 claims
- 0595US6462100B1Foams containing functionalized metal oxide nanoparticles and methods of making same3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Oct 8, 2002·45 cites·17 claims
- 0693US5271833APolymer-coated carbon-clad inorganic oxide particlesUNIV MINNESOTA·Filed 1992·Granted Dec 21, 1993·99 cites·51 claims
- 0790US5108597ACarbon-clad zirconium oxide particlesUNIV MINNESOTA·Filed 1990·Granted Apr 28, 1992·67 cites·10 claims
- 0889US5667674AAdsorption medium and method of preparing sameMINNESOTA MINING & MFG·Filed 1996·Granted Sep 16, 1997·69 cites·15 claims
- 0987US5346619ACarbon-clad zirconium oxide particlesUNIV MINNESOTA·Filed 1993·Granted Sep 13, 1994·53 cites·6 claims
- 1086US5968652ASilane coated particle3M INNOVATIVE PROPERTIES CO·Filed 1998·Granted Oct 19, 1999·53 cites·15 claims
- 1186US5205929AHigh stability porous zirconium oxide spherulesUNIV MINNESOTA·Filed 1992·Granted Apr 27, 1993·58 cites·3 claims
- 1284US5254262ACarbon-clad zirconium oxide particlesUNIV MINNESOTA·Filed 1993·Granted Oct 19, 1993·46 cites·11 claims
- 1384US5015373AHigh stability porous zirconium oxide spherulesUNIV MINNESOTA·Filed 1989·Granted May 14, 1991·54 cites·8 claims
- 1478USRE34910ECarbon-clad zirconium oxide particlesUNIV MINNESOTA·Filed 1993·Granted Apr 18, 1995·35 cites·1 claims
- 1577US9717798B2Polymeric colorant compositions and methods of use3M INNOVATIVE PROPERTIES CO·Filed 2012·Granted Aug 1, 2017·1 cites·22 claims
- 1671US10450333B2Guanidine-functionalized particles and methods of making and using3M INNOVATIVE PROPERTIES CO·Filed 2019·Granted Oct 22, 2019·0 cites·19 claims
- 1769US10246472B2Guanidine-functionalized particles and methods of making and using3M INNOVATIVE PROPERTIES CO·Filed 2017·Granted Apr 2, 2019·0 cites·19 claims
- 1868US5876595AAdsorption medium and method of preparing sameMINNESOTA MINING & MFG·Filed 1997·Granted Mar 2, 1999·26 cites·11 claims
- 1967US5141634AHigh stability porous zirconium oxide spherulesUNIV MINNESOTA·Filed 1991·Granted Aug 25, 1992·26 cites·11 claims
- 2050US10941252B2Silicone copolymers, methods of making, and articles3M INNOVATIVE PROPERTIES CO·Filed 2017·Granted Mar 9, 2021·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →