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Stone & Webster Process Technology, Inc.

Also on record
Records under this name other than the patents Stone & Webster Process Technology, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 13 patents it holds.

Back to Stone & Webster Process Technology, Inc.

PatentTitleStatus Expires Confidence
US 9,476,831Alkylaromatics Production Using Dilute Alkene
Formerly held
In force
 · High confidence
In forceHigh confidence
US 7,902,408BPA process improvement
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,744,067Three phase vapor distributor
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,088,956BPA process improvement
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,199,892Alkylation Process
Formerly held
In force
 · High confidence
In forceHigh confidence
US 9,011,620Double Transition Joint for the Joining of Ceramics to Metals
Formerly held
In force
 · High confidence
In forceHigh confidence
US 9,796,644Integrated process for producing cumene and purifying isopropanol
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,902,667Method for reducing energy consumption in a process to purify styrene monomer
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,714,203Method for reducing energy consumption in the production of styrene monomer utilizing azeotropic water/ethylbenzene feed vaporization
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,630,188Device and method for decoke effluent processing
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 138 patents shown.
Pro members see all 138.
Pro members: see all 138 patents
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