Inventor · disambiguated record
Viorel Duma
Also filed as: DUMA VIOREL · DUMA VIOREL D
13 granted patents·2 pending applications·60 citations·filing 1999–2023
87Inventor score
Top patents by PatentIndex Score
15 records- 0196US9908105B2Resid hydrotreating catalystADVANCED REFINING TECHNOLOGIES LLC·Filed 2015·Granted Mar 6, 2018·26 cites·15 claims
- 0295US9216407B2Resid hydrotreating catalystADVANCED REFINING TECHNOLOGIES LLC·Filed 2014·Granted Dec 22, 2015·26 cites·18 claims
- 0392US9956553B2Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalystCHEVRON USA INC·Filed 2016·Granted May 1, 2018·5 cites·23 claims
- 0486US11000839B2Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalystCHEVRON USA INC·Filed 2018·Granted May 11, 2021·2 cites·19 claims
- 0585US12011710B1Tetrametallic bulk hydroprocessing catalystsCHEVRON USA INC·Filed 2023·Granted Jun 18, 2024·0 cites·40 claims
- 0685US11951458B2Tetrametallic bulk hydroprocessing catalystsCHEVRON USA INC·Filed 2023·Granted Apr 9, 2024·0 cites·26 claims
- 0776US10968405B2Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operationsCHEVRON USA INC·Filed 2019·Granted Apr 6, 2021·1 cites·12 claims
- 0875US11731112B2Tetrametallic bulk hydroprocessing catalystsCHEVRON USA INC·Filed 2021·Granted Aug 22, 2023·0 cites·24 claims
- 0966US10589254B2Spheroidal resid hydrodemetallation catalystADVANCED REFINING TECHNOLOGIES LLC·Filed 2019·Granted Mar 17, 2020·0 cites·15 claims
- 1064US11041128B2Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operationsCHEVRON USA INC·Filed 2019·Granted Jun 22, 2021·0 cites·12 claims
- 1153US10279335B2Spheroidal resid hydrodemetallation catalystADVANCED REFINING TECHNOLOGIES LLC·Filed 2013·Granted May 7, 2019·0 cites·12 claims
- 1250US2024301300A1Base oil production using unconverted oilCHEVRON USA INC·Filed 2022·Application pending·0 cites
- 1349US2020102509A1Process using membranes to separate alkane isomers used in steam cracking to make olefinsCHEVRON USA INC·Filed 2019·Application pending·0 cites
- 1445US10584288B2Extruded resid demetallation catalystADVANCED REFINING TECHNOLOGIES LLC·Filed 2013·Granted Mar 10, 2020·0 cites·13 claims
- 1526US6392065B1Method of producing epoxy resins by gas phase epoxidationCREAVIS TECH & INNOVATION GMBH·Filed 1999·Granted May 21, 2002·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →