Inventor
HANGGI DOUGLAS A
US16 patents
⚠️ This page may combine multiple inventors who share the name “HANGGI DOUGLAS A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNIV MINNESOTA
8 patentsUS5346619ASep 13, 1994
Carbon-clad zirconium oxide particles
UNIV MINNESOTA53 citations96
US5271833ADec 21, 1993
Polymer-coated carbon-clad inorganic oxide particles
UNIV MINNESOTA99 citations96
US5254262AOct 19, 1993
Carbon-clad zirconium oxide particles
UNIV MINNESOTA46 citations96
US5108597AApr 28, 1992
Carbon-clad zirconium oxide particles
UNIV MINNESOTA67 citations96
US5205929AApr 27, 1993
High stability porous zirconium oxide spherules
UNIV MINNESOTA58 citations94
US5015373AMay 14, 1991
High stability porous zirconium oxide spherules
UNIV MINNESOTA54 citations94
USRE34910EApr 18, 1995
Carbon-clad zirconium oxide particles
UNIV MINNESOTA35 citations92
US5141634AAug 25, 1992
High stability porous zirconium oxide spherules
UNIV MINNESOTA26 citations91
3M INNOVATIVE PROPERTIES CO
6 patentsUS5968652AOct 19, 1999
Silane coated particle
3M INNOVATIVE PROPERTIES CO53 citations96
US9657038B2May 23, 2017
Guanidine-functionalized particles and methods of making and using
3M INNOVATIVE PROPERTIES CO13 citations92
US10450333B2Oct 22, 2019
Guanidine-functionalized particles and methods of making and using
3M INNOVATIVE PROPERTIES CO0 citations52
US10246472B2Apr 2, 2019
Guanidine-functionalized particles and methods of making and using
3M INNOVATIVE PROPERTIES CO0 citations52
US9717798B2Aug 1, 2017
Polymeric colorant compositions and methods of use
3M INNOVATIVE PROPERTIES CO1 citations52
US10941252B2Mar 9, 2021
Silicone copolymers, methods of making, and articles
3M INNOVATIVE PROPERTIES CO0 citations47