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4D-S, Ltd.

Also on record
Records under this name other than the patents 4D-S, Ltd. 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 6 patents it holds.

Showing 1 to 6 of 6 · Back to 4D-S, Ltd.

PatentTitleStatus Expires Confidence
US 8,367,513Systems and methods for fabricating self-aligned memory cell
Term ended
Term ended Jul 14, 2026 · From the USPTO record
Term endedTerm ended Jul 14, 2026From the USPTO record
US 8,466,032Systems and methods for fabricating self-aligned memory cell
Term ended
Term ended Jul 14, 2026 · From the USPTO record
Term endedTerm ended Jul 14, 2026From the USPTO record
US 8,884,401Systems and methods for fabricating self-aligned memory cell
Term ended
Term ended Jul 14, 2026 · From the USPTO record
Term endedTerm ended Jul 14, 2026From the USPTO record
US 9,711,714Systems and methods for fabricating self-aligned resistive/magnetic memory cell
Term ended
Term ended May 30, 2026 · From the USPTO record
Term endedTerm ended May 30, 2026From the USPTO record
US 9,058,876Methods and circuits for bulk erase of resistive memory
Lapsed on the fee record
Ended Jun 16, 2019 · From the USPTO record
Lapsed on the fee recordEnded Jun 16, 2019From the USPTO record
US 8,911,602Dual hexagonal shaped plasma source
Lapsed on the fee record
Ended Dec 16, 2018 · From the USPTO record
Lapsed on the fee recordEnded Dec 16, 2018From the USPTO record
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited