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Duratherm, Inc.

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Records under this name other than patents Duratherm, Inc. 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 7,022,293Method and Apparatus for Processing a Waste Product
Term ended
Term ended May 27, 2023 · High confidence
Term endedTerm ended May 27, 2023High confidence
US 6,638,396Method and Apparatus for Processing a Waste Product
Formerly held
Term ended
Term ended Nov 4, 2022 · High confidence
Term endedTerm ended Nov 4, 2022High confidence
US 6,120,650Separation of hydrocarbons/water/emulsifier mixtures
Term ended
Term ended Jan 28, 2018 · From the USPTO record
Term endedTerm ended Jan 28, 2018From the USPTO record
US 4,872,954Apparatus for the treatment of waste
Term ended
Term ended no later than Oct 10, 2009 · Low confidence
Term endedTerm ended no later than Oct 10, 2009Low confidence
US 5,078,836Method and apparatus for retorting material
Term ended
Term ended no later than Jan 7, 2012 · Low confidence
Term endedTerm ended no later than Jan 7, 2012Low confidence
US 5,227,026Retort heat exchanger apparatus
Term ended
Term ended no later than Jul 13, 2013 · Low confidence
Term endedTerm ended no later than Jul 13, 2013Low confidence
US 5,513,629Microwavable heat releasing and absorbing composition and container
Term ended
Term ended no later than May 7, 2016 · Low confidence
Term endedTerm ended no later than May 7, 2016Low confidence
US 5,523,060Apparatus for retorting material
Term ended
Term ended no later than Jun 4, 2016 · Low confidence
Term endedTerm ended no later than Jun 4, 2016Low confidence
US 5,570,749Drilling fluid remediation system
Term ended
Term ended no later than Nov 5, 2016 · Low confidence
Term endedTerm ended no later than Nov 5, 2016Low confidence
US 5,736,031Separation of hydrocarbons water/emulsifier mixtures
Term ended
Term ended no later than Apr 7, 2018 · Low confidence
Term endedTerm ended no later than Apr 7, 2018Low confidence
10 of 13 patents shown.
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Pro members: see all 13 patents
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