Inventor
LOTT ROGER K
CA17 patents
⚠️ This page may combine multiple inventors who share the name “LOTT ROGER K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEADWATERS HEAVY OIL LLC
9 patentsUS9605215B2Mar 28, 2017
Systems for hydroprocessing heavy oil
HEADWATERS HEAVY OIL LLC39 citations97
US7815870B2Oct 19, 2010
Ebullated bed hydroprocessing systems
HEADWATERS HEAVY OIL LLC36 citations96
US7449103B2Nov 11, 2008
Ebullated bed hydroprocessing methods and systems and methods of upgrading an existing ebullated bed system
HEADWATERS HEAVY OIL LLC44 citations96
US8673130B2Mar 18, 2014
Method for efficiently operating an ebbulated bed reactor and an efficient ebbulated bed reactor
HEADWATERS HEAVY OIL LLC14 citations92
US7578928B2Aug 25, 2009
Hydroprocessing method and system for upgrading heavy oil using a colloidal or molecular catalyst
HEADWATERS HEAVY OIL LLC39 citations92
US7517446B2Apr 14, 2009
Fixed bed hydroprocessing methods and systems and methods for upgrading an existing fixed bed system
HEADWATERS HEAVY OIL LLC53 citations90
US8557105B2Oct 15, 2013
Methods for increasing catalyst concentration in heavy oil and/or coal resid hydrocracker
HEADWATERS HEAVY OIL LLC9 citations82
US10118146B2Nov 6, 2018
Systems and methods for hydroprocessing heavy oil
HEADWATERS HEAVY OIL LLC0 citations52
US9920261B2Mar 20, 2018
Method for upgrading ebullated bed reactor and upgraded ebullated bed reactor
HEADWATERS HEAVY OIL LLC0 citations52
LOTT ROGER K
6 patentsUS8440071B2May 14, 2013
Methods and systems for hydrocracking a heavy oil feedstock using an in situ colloidal or molecular catalyst
LOTT ROGER K11 citations92
US8431016B2Apr 30, 2013
Methods for hydrocracking a heavy oil feedstock using an in situ colloidal or molecular catalyst and recycling the colloidal or molecular catalyst
LOTT ROGER K22 citations92
US8303802B2Nov 6, 2012
Methods for hydrocracking a heavy oil feedstock using an in situ colloidal or molecular catalyst and recycling the colloidal or molecular catalyst
LOTT ROGER K11 citations92
US8309041B2Nov 13, 2012
Systems for increasing catalyst concentration in heavy oil and/or coal resid hydrocracker
LOTT ROGER K25 citations90
US10941353B2Mar 9, 2021
Methods and mixing systems for introducing catalyst precursor into heavy oil feedstock
LOTT ROGER K14 citations85
US10822553B2Nov 3, 2020
Mixing systems for introducing a catalyst precursor into a heavy oil feedstock
LOTT ROGER K14 citations85