Process for Treating a Sodium Carbonate Purge

Solvay S.A.

A patent family: one line of work, grouped by real continuity rather than by a technology label inferred from titles. 2 of these applications claim priority to application 15/456,008, filed Mar 10, 2017. A shared origin can cover several different claimed inventions, which is why members here may not share a title. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.

Patent	Title	Holder	Status	Expires	Time remaining	Confidence
US 11,465,907	Process for Producing a Concentrated Aqueous Sodium Hydroxide Solution Solvay S.A. In force Term ends Nov 11, 2034 · High confidence	Solvay S.A.	In force	Term ends Nov 11, 2034	Term ends Nov 11, 2034	High confidence
US 12,434,976	Process for Treating a Sodium Carbonate Purge Solvay SA In force Ends no later than Nov 11, 2034 · Medium confidence	Solvay SA	In force	Ends no later than Nov 11, 2034	Ends no later than Nov 11, 2034	Medium confidence
US 9,593,023	Process for Treating a Sodium Carbonate Purge Solvay S.A. In force Term ends Jan 21, 2035 · High confidence	Solvay S.A.	In force	Term ends Jan 21, 2035	Term ends Jan 21, 2035	High confidence
Application 15/456,008	Sodium Hydroxide Aqueous Solution Solvay S.A. Abandoned Abandoned Feb 16, 2021	Solvay S.A.	Abandoned	Abandoned Feb 16, 2021	not computed

4 of 4 records shown. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.

3 of these are in force and held by Solvay S.A..

Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.