Data Cache with Hybrid Writeback and Writethrough

Sifive, Inc.

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 16/797,478, filed Feb 21, 2020. 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 11,023,375	Data Cache with Hybrid Writeback and Writethrough Sifive, Inc. In force Term ends Feb 21, 2040 · High confidence	Sifive, Inc.	In force	Term ends Feb 21, 2040	Term ends Feb 21, 2040	High confidence
US 11,467,961	Data Cache with Hybrid Writeback and Writethrough Sifive, Inc. In force Ends no later than Feb 21, 2040 · Medium confidence	Sifive, Inc.	In force	Ends no later than Feb 21, 2040	Ends no later than Feb 21, 2040	Medium confidence
US 11,687,455	Data Cache with Hybrid Writeback and Writethrough Sifive, Inc. In force Term ends Feb 21, 2040 · High confidence	Sifive, Inc.	In force	Term ends Feb 21, 2040	Term ends Feb 21, 2040	High confidence

3 of 3 records shown. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.

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.