Inventor · Hercules, CA, US

Viorel Duma

13Patents

2h-index

23Co-inventors

54Inventor score

Filing activity: Jul 26, 2000 → Jun 29, 2023

Most-cited inventions

Patent	Title	Area	Cited by	Status
US9216407B2	Resid hydrotreating catalyst	Chemistry; Metallurgy	24	Active
US9908105B2	Resid hydrotreating catalyst	Chemistry; Metallurgy	24	Active
US9956553B2	Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst	Emerging Cross-Sectional Technologies	1	Active
US11731112B2	Tetrametallic bulk hydroprocessing catalysts	Chemistry; Metallurgy	0	Active
US11951458B2	Tetrametallic bulk hydroprocessing catalysts	Chemistry; Metallurgy	0	Active
US11041128B2	Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operations	Chemistry; Metallurgy	0	Active
US12011710B1	Tetrametallic bulk hydroprocessing catalysts	Chemistry; Metallurgy	0	Active
US10968405B2	Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operations	Chemistry; Metallurgy	0	Active
US11000839B2	Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst	Emerging Cross-Sectional Technologies	0	Active
US6392065B1	Method of producing epoxy resins by gas phase epoxidation	Chemistry; Metallurgy	0	Expired
US10589254B2	Spheroidal resid hydrodemetallation catalyst	Chemistry; Metallurgy	0	Active
US10279335B2	Spheroidal resid hydrodemetallation catalyst	Chemistry; Metallurgy	0	Active
US10584288B2	Extruded resid demetallation catalyst	Chemistry; Metallurgy	0	Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.