Inventor · disambiguated record
Roger K. Lott
Also filed as: LOTT ROGER K · LOTT ROGER KAI
20 granted patents·2 pending applications·481 citations·filing 1994–2016
96Inventor score
Files withHEADWATERS HEAVY OIL LLC9LOTT ROGER K7CETAMAX VENTURES LTD2ALBERTA OIL SANDS TECH1ALBERTA RES COUNCIL1
Top patents by PatentIndex Score
22 records- 0198US9605215B2Systems for hydroprocessing heavy oilHEADWATERS HEAVY OIL LLC·Filed 2013·Granted Mar 28, 2017·39 cites·49 claims
- 0297US8431016B2Methods for hydrocracking a heavy oil feedstock using an in situ colloidal or molecular catalyst and recycling the colloidal or molecular catalystLOTT ROGER K·Filed 2010·Granted Apr 30, 2013·22 cites·39 claims
- 0397US7449103B2Ebullated bed hydroprocessing methods and systems and methods of upgrading an existing ebullated bed systemHEADWATERS HEAVY OIL LLC·Filed 2005·Granted Nov 11, 2008·44 cites·41 claims
- 0496US8673130B2Method for efficiently operating an ebbulated bed reactor and an efficient ebbulated bed reactorHEADWATERS HEAVY OIL LLC·Filed 2013·Granted Mar 18, 2014·14 cites·43 claims
- 0596US7815870B2Ebullated bed hydroprocessing systemsHEADWATERS HEAVY OIL LLC·Filed 2008·Granted Oct 19, 2010·36 cites·25 claims
- 0694US8440071B2Methods and systems for hydrocracking a heavy oil feedstock using an in situ colloidal or molecular catalystLOTT ROGER K·Filed 2011·Granted May 14, 2013·11 cites·52 claims
- 0794US8309041B2Systems for increasing catalyst concentration in heavy oil and/or coal resid hydrocrackerLOTT ROGER K·Filed 2011·Granted Nov 13, 2012·25 cites·34 claims
- 0894US8303802B2Methods for hydrocracking a heavy oil feedstock using an in situ colloidal or molecular catalyst and recycling the colloidal or molecular catalystLOTT ROGER K·Filed 2011·Granted Nov 6, 2012·11 cites·44 claims
- 0994US7578928B2Hydroprocessing method and system for upgrading heavy oil using a colloidal or molecular catalystHEADWATERS HEAVY OIL LLC·Filed 2005·Granted Aug 25, 2009·39 cites·44 claims
- 1093US7517446B2Fixed bed hydroprocessing methods and systems and methods for upgrading an existing fixed bed systemHEADWATERS HEAVY OIL LLC·Filed 2005·Granted Apr 14, 2009·53 cites·42 claims
- 1193US5578197AHydrocracking process involving colloidal catalyst formed in situALBERTA OIL SANDS TECH·Filed 1994·Granted Nov 26, 1996·113 cites·43 claims
- 1291US10941353B2Methods and mixing systems for introducing catalyst precursor into heavy oil feedstockLOTT ROGER K·Filed 2006·Granted Mar 9, 2021·14 cites·44 claims
- 1391US10822553B2Mixing systems for introducing a catalyst precursor into a heavy oil feedstockLOTT ROGER K·Filed 2009·Granted Nov 3, 2020·14 cites·36 claims
- 1490US8557105B2Methods for increasing catalyst concentration in heavy oil and/or coal resid hydrocrackerHEADWATERS HEAVY OIL LLC·Filed 2012·Granted Oct 15, 2013·9 cites·35 claims
- 1585US8034232B2Methods for increasing catalyst concentration in heavy oil and/or coal resid hydrocrackerHEADWATERS TECH INNOVATION LLC·Filed 2007·Granted Oct 11, 2011·13 cites·28 claims
- 1682US7425584B2Catalytic devulcanization of rubberALBERTA RES COUNCIL·Filed 2004·Granted Sep 16, 2008·20 cites·31 claims
- 1770US10118146B2Systems and methods for hydroprocessing heavy oilHEADWATERS HEAVY OIL LLC·Filed 2016·Granted Nov 6, 2018·0 cites·28 claims
- 1864US8920633B2Method and system for oxidatively increasing cetane number of hydrocarbon fuelCHAN KIN MENG·Filed 2010·Granted Dec 30, 2014·4 cites·31 claims
- 1963US9920261B2Method for upgrading ebullated bed reactor and upgraded ebullated bed reactorHEADWATERS HEAVY OIL LLC·Filed 2013·Granted Mar 20, 2018·0 cites·38 claims
- 2039US9453177B2Method and system for oxidatively increasing cetane number of hydrocarbon fuelCETAMAX VENTURES LTD·Filed 2014·Granted Sep 27, 2016·0 cites·21 claims
- 2138US2016046878A1Ultrasonic cavitation reactor for processing hydrocarbons and methods of use thereofLOTT ROGER K·Filed 2015·Application pending·0 cites
- 2238US2015210949A1Methods and Systems for Combined Oxidative and Hydrotreatment of Hydrocarbon FuelCETAMAX VENTURES LTD·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →