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Semco LLC

Also on record
Records under this name other than the patents Semco LLC 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 12 patents it holds.

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PatentTitleStatus Expires Confidence
US 6,751,964Desiccant-Based Dehumidifaction System and Method
Term ended
Term ended Jun 28, 2022 · High confidence
Term endedTerm ended Jun 28, 2022High confidence
US 6,976,315Apparatus for engraving images and its adaptor
Formerly held
Term ended
Term ended Sep 10, 2021 · From the USPTO record
Term endedTerm ended Sep 10, 2021From the USPTO record
US 8,468,703Image card, image engraving device and image engraving method
Formerly held
Lapsed on the fee record
Ended Jun 25, 2021 · From the USPTO record
Lapsed on the fee recordEnded Jun 25, 2021From the USPTO record
US 8,336,215Image card, image engraving device and image engraving method
Formerly held
Lapsed on the fee record
Ended Dec 25, 2020 · From the USPTO record
Lapsed on the fee recordEnded Dec 25, 2020From the USPTO record
US 6,269,975Chemical delivery systems and methods of delivery
Formerly held
Term ended
Term ended May 11, 2020 · From the USPTO record
Term endedTerm ended May 11, 2020From the USPTO record
US D504,503Duct link
Formerly held
Term ended
Term ended Apr 26, 2019 · From the USPTO record
Term endedTerm ended Apr 26, 2019From the USPTO record
US 6,199,388System and method for controlling temperature and humidity
Term ended
Term ended Mar 10, 2019 · From the USPTO record
Term endedTerm ended Mar 10, 2019From the USPTO record
US 6,098,843Chemical delivery systems and methods of delivery
Formerly held
Term ended
Term ended Dec 31, 2018 · From the USPTO record
Term endedTerm ended Dec 31, 2018From the USPTO record
US 6,340,098Chemical delivery systems and methods of delivery
Formerly held
Term ended
Term ended Dec 30, 2018 · From the USPTO record
Term endedTerm ended Dec 30, 2018From the USPTO record
US 6,675,987Chemical delivery systems and methods of delivery
Formerly held
Term ended
Term ended Dec 30, 2018 · From the USPTO record
Term endedTerm ended Dec 30, 2018From the USPTO record
10 of 26 patents shown.
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Pro members: see all 26 patents
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