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Kvaerner Process Technology Limited

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Records under this name other than patents Kvaerner Process Technology Limited holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.

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PatentTitleStatus Expires Confidence
US 6,632,330Process for purification of alkyl alkanoate
Formerly held
Term ended
Term ended Jun 5, 2021 · From the USPTO record
Term endedTerm ended Jun 5, 2021From the USPTO record
US 6,809,217Process for the preparation of ethyl acetate
Formerly held
Term ended
Ended no later than Jun 5, 2021 · From the USPTO record
Term endedEnded no later than Jun 5, 2021From the USPTO record
US 6,265,624Process for preparing pentane-1,5-diol
Formerly held
Term ended
Term ended Apr 19, 2020 · From the USPTO record
Term endedTerm ended Apr 19, 2020From the USPTO record
US 6,193,872Process and plant for treating an aqueous waste stream containing at least one alkali metal carboxylate
Formerly held
Term ended
Term ended Jun 22, 2019 · From the USPTO record
Term endedTerm ended Jun 22, 2019From the USPTO record
US 6,137,016Process for the purification of butane-1,4-diol
Term ended
Term ended May 3, 2019 · From the USPTO record
Term endedTerm ended May 3, 2019From the USPTO record
US 6,536,513Heat exchange apparatus and method of use
Term ended
Term ended Mar 3, 2019 · From the USPTO record
Term endedTerm ended Mar 3, 2019From the USPTO record
US 6,197,271Catalytic reactor and process for exothermic gas phase reactions
Term ended
Term ended Dec 10, 2018 · From the USPTO record
Term endedTerm ended Dec 10, 2018From the USPTO record
US 6,077,964Process for preparing gamma-butyrolactone, butane-1, 4-diol and tetrahydrofuran
Formerly held
Term ended
Term ended Nov 12, 2018 · From the USPTO record
Term endedTerm ended Nov 12, 2018From the USPTO record
US 6,100,410Process for the production of 1,4-butanediol, .gamma.-butyrolactone and tetrahydrofuran
Formerly held
Term ended
Term ended Nov 12, 2018 · From the USPTO record
Term endedTerm ended Nov 12, 2018From the USPTO record
US 6,609,562Heat exchange apparatus and method of use
Term ended
Term ended Sep 9, 2018 · From the USPTO record
Term endedTerm ended Sep 9, 2018From the USPTO record
10 of 15 patents shown.
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Pro members: see all 15 patents
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