Inventor · disambiguated record
Todd D. Hellewell
Also filed as: HELLEWELL TODD D · HELLEWELL TODD DAVID
11 granted patents·2 pending applications·286 citations·filing 1983–2017
89Inventor score
Files withCOMBUSTION ENG5ALSTOM TECHNOLOGY LTD3DONAIS RICHARD E2GENERAL ELECTRIC TECHNOLOGY GMBH2COHEN MITCHELL B1
Top patents by PatentIndex Score
13 records- 0192US5315939AIntegrated low NOx tangential firing systemCOMBUSTION ENG·Filed 1993·Granted May 31, 1994·91 cites·25 claims
- 0289US5020454AClustered concentric tangential firing systemCOMBUSTION ENG·Filed 1990·Granted Jun 4, 1991·71 cites·19 claims
- 0383US6089171AMinimum recirculation flame control (MRFC) pulverized solid fuel nozzle tipCOMBUSTION ENG·Filed 1997·Granted Jul 18, 2000·51 cites·17 claims
- 0479US5626085AControl of staged combustion, low NOx firing systems with single or multiple levels of overfire airCOMBUSTION ENG·Filed 1995·Granted May 6, 1997·58 cites·19 claims
- 0568US9649594B2Dual injection grid arrangementALSTOM TECHNOLOGY LTD·Filed 2015·Granted May 16, 2017·1 cites·12 claims
- 0657US4505435AApparatus for removal of troublesome mineral matter from pulverized coalCOMBUSTION ENG·Filed 1983·Granted Mar 19, 1985·13 cites·2 claims
- 0749US8980212B1Flue gas stream bypass during selective catalytic reduction in a power plantALSTOM TECHNOLOGY LTD·Filed 2013·Granted Mar 17, 2015·0 cites·11 claims
- 0849US8701572B2Low NOx nozzle tip for a pulverized solid fuel furnaceDONAIS RICHARD E·Filed 2009·Granted Apr 22, 2014·1 cites·20 claims
- 0947US2016146462A1PLANT, COMBUSTION APPARATUS, AND METHOD FOR REDUCTION OF NOx EMISSIONSALSTOM TECHNOLOGY LTD·Filed 2014·Application pending·0 cites
- 1043US9488369B2Enhanced flue gas damper mixing deviceCOHEN MITCHELL B·Filed 2012·Granted Nov 8, 2016·0 cites·10 claims
- 1139US10634341B2Overfire air system for low nitrogen oxide tangentially fired boilerGENERAL ELECTRIC TECHNOLOGY GMBH·Filed 2016·Granted Apr 28, 2020·0 cites·19 claims
- 1239US9388982B2Flow deflectors for fuel nozzlesDONAIS RICHARD E·Filed 2011·Granted Jul 12, 2016·0 cites·30 claims
- 1338US2018238541A1System and method for firing a biofuelGENERAL ELECTRIC TECHNOLOGY GMBH·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →