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Kai Technologies, Inc.

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Records under this name other than patents Kai Technologies, 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 10,085,103Music enhancing device for sound systems
Lapsed on the fee record
Ended Sep 25, 2022 · From the USPTO record
Lapsed on the fee recordEnded Sep 25, 2022From the USPTO record
US 6,189,611Radio frequency steam flood and gas drive for enhanced subterranean recovery
Term ended
Term ended Mar 24, 2019 · From the USPTO record
Term endedTerm ended Mar 24, 2019From the USPTO record
US 6,181,970Microwave devices for medical hyperthermia, thermotherapy and diagnosis
Term ended
Term ended Feb 9, 2019 · From the USPTO record
Term endedTerm ended Feb 9, 2019From the USPTO record
US 6,440,312Extracting oil and water from drill cuttings using RF energy
Lapsed on the fee record
Ended Aug 27, 2010 · From the USPTO record
Lapsed on the fee recordEnded Aug 27, 2010From the USPTO record
US 6,413,399Soil heating with a rotating electromagnetic field
Lapsed on the fee record
Ended Jul 2, 2010 · From the USPTO record
Lapsed on the fee recordEnded Jul 2, 2010From the USPTO record
US 7,055,599Electromagnetic coal seam gas recovery system
Lapsed on the fee record
Ended Jun 6, 2010 · From the USPTO record
Lapsed on the fee recordEnded Jun 6, 2010From the USPTO record
US 6,346,693Selective heating of agricultural products
Lapsed on the fee record
Ended Feb 12, 2010 · From the USPTO record
Lapsed on the fee recordEnded Feb 12, 2010From the USPTO record
US 6,275,738Microwave devices for medical hyperthermia, thermotherapy and diagnosis
Lapsed on the fee record
Ended Aug 14, 2009 · From the USPTO record
Lapsed on the fee recordEnded Aug 14, 2009From the USPTO record
US 6,233,490Microwave antennas for medical hyperthermia, thermotherapy and diagnosis
Lapsed on the fee record
Ended May 15, 2009 · From the USPTO record
Lapsed on the fee recordEnded May 15, 2009From the USPTO record
US 6,097,985Microwave systems for medical hyperthermia, thermotherapy and diagnosis
Lapsed on the fee record
Ended Aug 1, 2008 · From the USPTO record
Lapsed on the fee recordEnded Aug 1, 2008From the USPTO record
10 of 13 patents shown.
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