Assignee
HEADWATERS HEAVY OIL LLC
US·14 granted patents·290 citations·filing 2005–2017
Top patents by PatentIndex Score
14 records- 0198US9605215B2Systems for hydroprocessing heavy oilHEADWATERS HEAVY OIL LLC·Filed 2013·Granted Mar 28, 2017·39 cites·49 claims
- 0297US7449103B2Ebullated 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
- 0396US8673130B2Method 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
- 0496US7815870B2Ebullated bed hydroprocessing systemsHEADWATERS HEAVY OIL LLC·Filed 2008·Granted Oct 19, 2010·36 cites·25 claims
- 0594US7578928B2Hydroprocessing 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
- 0693US7517446B2Fixed 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
- 0790US8557105B2Methods 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
- 0889US7357903B2Method for reducing NOx during combustion of coal in a burnerHEADWATERS HEAVY OIL LLC·Filed 2005·Granted Apr 15, 2008·56 cites·24 claims
- 0970US10118146B2Systems and methods for hydroprocessing heavy oilHEADWATERS HEAVY OIL LLC·Filed 2016·Granted Nov 6, 2018·0 cites·28 claims
- 1063US9920261B2Method for upgrading ebullated bed reactor and upgraded ebullated bed reactorHEADWATERS HEAVY OIL LLC·Filed 2013·Granted Mar 20, 2018·0 cites·38 claims
- 1147US9969946B2Apparatus and systems for upgrading heavy oil using catalytic hydrocracking and thermal cokingHEADWATERS HEAVY OIL LLC·Filed 2015·Granted May 15, 2018·0 cites·35 claims
- 1242US11421164B2Dual catalyst system for ebullated bed upgrading to produce improved quality vacuum residue productHEADWATERS HEAVY OIL LLC·Filed 2017·Granted Aug 23, 2022·0 cites·35 claims
- 1339US11414607B2Upgraded ebullated bed reactor with increased production rate of converted productsHEADWATERS HEAVY OIL LLC·Filed 2016·Granted Aug 16, 2022·0 cites·23 claims
- 1439US11414608B2Upgraded ebullated bed reactor used with opportunity feedstocksHEADWATERS HEAVY OIL LLC·Filed 2016·Granted Aug 16, 2022·0 cites·22 claims
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