Inventor · disambiguated record
Randal L. Hatfield
Also filed as: HATFIELD RANDAL · HATFIELD RANDAL L
11 granted patents·12 pending applications·103 citations·filing 2008–2017
91Inventor score
Top patents by PatentIndex Score
23 records- 0197US9604175B2Three-way catalyst systems including Nb—Zr—Al-mixed oxide supports, Ba—Pd, and Rh—Fe material compositionsCLEAN DIESEL TECH INC·Filed 2015·Granted Mar 28, 2017·23 cites·20 claims
- 0295US9012353B2Palladium solid solution catayst and methods of makingGOLDEN STEPHEN J·Filed 2012·Granted Apr 21, 2015·22 cites·15 claims
- 0394US9579604B2Base metal activated rhodium coatings for catalysts in three-way catalyst (TWC) applicationsCLEAN DIESEL TECH INC·Filed 2015·Granted Feb 28, 2017·5 cites·14 claims
- 0494US9475004B2Rhodium-iron catalystsCLEAN DIESEL TECH INC·Filed 2015·Granted Oct 25, 2016·6 cites·20 claims
- 0593US9475005B2Three-way catalyst systems including Fe-activated Rh and Ba-Pd material compositionsCLEAN DIESEL TECH INC·Filed 2015·Granted Oct 25, 2016·7 cites·18 claims
- 0692US9011784B2Catalyst with lanthanide-doped zirconia and methods of makingGOLDEN STEPHEN J·Filed 2012·Granted Apr 21, 2015·11 cites·7 claims
- 0789US10265684B2Highly active and thermally stable coated gasoline particulate filtersCLEAN DIESEL TECH INC·Filed 2017·Granted Apr 23, 2019·4 cites·25 claims
- 0889US9216410B2Systems and methods for using Pd1+ in a TWCHATFIELD RANDAL L·Filed 2013·Granted Dec 22, 2015·12 cites·20 claims
- 0987US8685352B2Zero platinum group metal catalystsGOLDEN STEPHEN J·Filed 2010·Granted Apr 1, 2014·7 cites·7 claims
- 1067US9073011B2Systems and methods for diesel oxidation catalyst with decreased SO3 emissionsHATFIELD RANDAL·Filed 2013·Granted Jul 7, 2015·2 cites·14 claims
- 1167US8496896B2Zero platinum group metal catalystsGOLDEN STEPHEN J·Filed 2008·Granted Jul 30, 2013·4 cites·5 claims
- 1253US2016030885A1Systems and methods for diesel oxidation catalyst with decreased so3 emissionsCLEAN DIESEL TECH INC·Filed 2015·Application pending·0 cites
- 1353US2015316524A1System and Apparatus for a Laboratory Scale ReactorCLEAN DIESEL TECH INC·Filed 2015·Application pending·0 cites
- 1453US2009324468A1Zero platinum group metal catalystsGOLDEN STEPHEN J·Filed 2008·Application pending·0 cites
- 1552US2014335626A1Test Bench Gas Flow Control System and MethodHATFIELD RANDAL L·Filed 2013·Application pending·0 cites
- 1651US2016279611A1Catalyst with lanthamide-doped zirconia and methods of makingGOLDEN STEPHEN J·Filed 2015·Application pending·0 cites
- 1751US2015196902A1Palladium solid solution catayst and methods of makingGOLDEN STEPHEN J·Filed 2015·Application pending·0 cites
- 1842US2015147239A1ZPGM Underfloor Catalyst for Hybrid Exhaust Treatment SystemsLAUNOIS MAXIME·Filed 2013·Application pending·0 cites
- 1942US2014334978A1System and Apparatus for a Laboratory Scale ReactorHATFIELD RANDAL L·Filed 2013·Application pending·0 cites
- 2042US2014335625A1Temperature Control Method in a Laboratory Scale ReactorHATFIELD RANDAL L·Filed 2013·Application pending·0 cites
- 2139US2016354765A1Nb-Zr-Al-Mixed Oxide Supports for Rh Layer use in TWC ConvertersCLEAN DIESEL TECH INC·Filed 2015·Application pending·0 cites
- 2239US2015258496A1Hybrid PGM-ZPGM TWC Exhaust Treatment SystemsCLEAN DIESEL TECH INC·Filed 2015·Application pending·0 cites
- 2338US2014301906A1Three Way Catalyst Double Impregnation Composition and Method ThereofHATFIELD RANDAL·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →