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Visbreaking process

Mineral oils: processes and products – Chemical conversion of hydrocarbons – With subsequent treatment of products
Patent

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Visbreaking process

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent

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Visbreaking process for demetalation and desulfurization of heav

Mineral oils: processes and products – Refining – Sulfur removal
Patent

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Viscosity improver compositions providing improved low...

Mineral oils: processes and products – Products and compositions – Lubricating oils
Reexamination Certificate

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Viscosity index improvement in dewaxed lube basestock by partial

Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent

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Viscosity modification of heavy hydrocarbons

Mineral oils: processes and products – Products and compositions – Asphalts – tars – pitches and resins
Reexamination Certificate

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Viscosity modification of heavy hydrocarbons using dihydric...

Mineral oils: processes and products – Asphalts – tars – pitches and resins; making – treating and...
Reexamination Certificate

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Viscosity reduction by direct oxidative heating

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
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Viscosity reduction by heat soak-induced naphthenic acid decompo

Mineral oils: processes and products – Refining – Organic acid or phenol contaminant removal
Patent

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Viscosity reduction of crude oils and residuums

Mineral oils: processes and products – Asphalts – tars – pitches and resins; making – treating and... – Chemical modification of asphalt – tar – pitch or resin
Reexamination Certificate

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Viscosity reduction of oils by sonic treatment

Mineral oils: processes and products – Refining – With acids
Reexamination Certificate

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Viscosity reduction process

Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention or removal of deleterious carbon...
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Viscosity reduction processing at elevated pressure

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent

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Void grading

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Solids contacting and mixing
Patent

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Volatile amines for treating refinery overhead systems

Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention of corrosion or erosion in system
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VPS tar separation

Mineral oils: processes and products – Asphalts – tars – pitches and resins; making – treating and... – By distillation
Reexamination Certificate

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