Inventor · disambiguated record
Andrew J. Loetz
Also filed as: LOETZ ANDREW · LOETZ ANDREW J · LOETZ ANDREW JOSEPH
14 granted patents·14 pending applications·14 citations·filing 2014–2024
85Inventor score
Files withCATERPILLAR INC28
Top patents by PatentIndex Score
28 records- 0192US9903264B1Control system for an engine cylinder with fuel control of pre chamber and main chamberCATERPILLAR INC·Filed 2016·Granted Feb 27, 2018·9 cites·13 claims
- 0291US11959414B2Gaseous fuel reciprocating engine and operating methodology for reduced hydrogen flame speedCATERPILLAR INC·Filed 2022·Granted Apr 16, 2024·2 cites·20 claims
- 0384US11773795B1Gaseous fuel engine and operating strategy for limiting preignition in prechamber sparkplugCATERPILLAR INC·Filed 2022·Granted Oct 3, 2023·1 cites·20 claims
- 0476US12264636B2Low compression natural gas engine piston bowl for improved combustion stabilityCATERPILLAR INC·Filed 2023·Granted Apr 1, 2025·0 cites·19 claims
- 0575US11840983B2Low compression natural gas engine piston bowl for improved combustion stabilityCATERPILLAR INC·Filed 2022·Granted Dec 12, 2023·0 cites·13 claims
- 0667US10815912B2Natural gas fuel reformer control for lean burn gas enginesCATERPILLAR INC·Filed 2016·Granted Oct 27, 2020·1 cites·10 claims
- 0764US12104546B2Gaseous fuel engine operating strategy for improved derating performance using varied ratio fuel blendCATERPILLAR INC·Filed 2022·Granted Oct 1, 2024·0 cites·18 claims
- 0864US10724423B2Vented pre-chamber assembly for an engineCATERPILLAR INC·Filed 2017·Granted Jul 28, 2020·1 cites·20 claims
- 0962US12158121B2Engine system configured for unburned hydrocarbon (HC) collection from exhaust portCATERPILLAR INC·Filed 2022·Granted Dec 3, 2024·0 cites·15 claims
- 1062US12146452B1Piston and engine system using sameCATERPILLAR INC·Filed 2023·Granted Nov 19, 2024·0 cites·19 claims
- 1161US12163451B1Selective catalytic reduction for hydrogen enginesCATERPILLAR INC·Filed 2023·Granted Dec 10, 2024·0 cites·15 claims
- 1258US12037961B1Piston optimized for combustion flame speed and compression ratio in engine systemCATERPILLAR INC·Filed 2023·Granted Jul 16, 2024·0 cites·17 claims
- 1351US11047341B2Prechamber fluid injectionCATERPILLAR INC·Filed 2018·Granted Jun 29, 2021·0 cites·18 claims
- 1446US2025297569A1Piston with combustion stabilizing bowlCATERPILLAR INC·Filed 2024·Application pending·0 cites
- 1546US2016169152A1Engine PistonCATERPILLAR INC·Filed 2014·Application pending·0 cites
- 1639US10545066B2Leak detection toolCATERPILLAR INC·Filed 2016·Granted Jan 28, 2020·0 cites·12 claims
- 1738US2017101923A1Multiple prechambers with interacting jetsCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 1838US2016069251A1Pressure-limiting device for pre-combustion chamberCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 1938US2016061096A1PRE-COMBUSTION CHAMBER WITH NOx REDUCING CATALYSTCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2038US2016053668A1Prechamber assembly for engineCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2138US2016069250A1Control valve for pre-combustion chamber assemblyCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2238US2017101967A1Prechamber internal reformer catalystCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2337US2016053667A1Prechamber assembly for an engineCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2436US2016053672A1Fuel supply system for engineCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2536US2016237942A1Fuel control systemCATERPILLAR INC·Filed 2016·Application pending·0 cites
- 2635US2017101922A1Prechamber insert for an internal combustion engineCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2735US2017089252A1Ignition plugs in prechamber and main combustion chamber of an ic engineCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 2835US2016061095A1Fuel injection system for an engineCATERPILLAR INC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →