The Patent Finder

Spheritech Ltd.

Also on record
Records under this name other than the patents Spheritech 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 3 patents it holds.

Showing 1 to 4 of 4 · Back to Spheritech Ltd.

PatentTitleStatus Expires Confidence
US 11,999,696Heterocyclic azide units and their use in polymer coatings
Formerly held
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,938,378Cross-linked poly-E-lysine non-particulate support
Lapsed on the fee record
Ended Apr 10, 2026 · From the USPTO record
Lapsed on the fee recordEnded Apr 10, 2026From the USPTO record
US 11,273,207Microparticles
Lapsed on the fee record
Ended Mar 15, 2026 · From the USPTO record
Lapsed on the fee recordEnded Mar 15, 2026From the USPTO record
US 8,906,404Three dimensional porous polymeric structure having a pore-size range of 1/10 to 10 times the average pore size
Lapsed on the fee record
Ended Dec 9, 2022 · From the USPTO record
Lapsed on the fee recordEnded Dec 9, 2022From 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