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Alphatech, Inc.

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Records under this name other than patents Alphatech, 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 8,579,074Intake Silencer for Gas Turbine
Formerly held
In force
 · High confidence
In forceHigh confidence
US 7,363,515Control Systems and Methods Using a Partially-Observable Markov Decision Process (PO-MDP)
Formerly held
Term ended
Term ended Feb 8, 2026 · High confidence
Term endedTerm ended Feb 8, 2026High confidence
US 7,326,028High Flow/Dual Inducer/High Efficiency Impeller for Liquid Applications Including Molten Metal
Formerly held
Term ended
Term ended Jan 23, 2026 · High confidence
Term endedTerm ended Jan 23, 2026High confidence
US 6,622,118System and Method for Comparing Signals
Formerly held
Term ended
Term ended Oct 13, 2021 · High confidence
Term endedTerm ended Oct 13, 2021High confidence
US 8,449,215Hub-shaft assembly
Lapsed on the fee record
Ended May 28, 2021 · From the USPTO record
Lapsed on the fee recordEnded May 28, 2021From the USPTO record
US 7,391,742Methods and Systems for Determining a Set of Costs of Routes in a Network
Formerly held
Lapsed on the fee record
Ended Jun 24, 2020 · High confidence
Lapsed on the fee recordEnded Jun 24, 2020High confidence
US 6,899,772Alloy molten composition suitable for molten magnesium environments
Term ended
Ended no later than Mar 27, 2020 · From the USPTO record
Term endedEnded no later than Mar 27, 2020From the USPTO record
US 6,106,226High velocity prestressed shaft for degasser or pumping application in molten metal
Term ended
Term ended Nov 22, 2019 · From the USPTO record
Term endedTerm ended Nov 22, 2019From the USPTO record
US 6,082,965Advanced motor driven impeller pump for moving metal in a bath of molten metal
Term ended
Term ended Sep 20, 2019 · From the USPTO record
Term endedTerm ended Sep 20, 2019From the USPTO record
US 6,051,183Jet column and jet column reactor dross removing dross diluting pumps
Term ended
Term ended Oct 26, 2018 · From the USPTO record
Term endedTerm ended Oct 26, 2018From the USPTO record
10 of 31 patents shown.
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