High Performance Design Rule Checking Technique

Synopsys, Inc.

A patent family: one line of work, grouped by real continuity rather than by a technology label inferred from titles. 9 of these applications claim priority to application 12/960,086, filed Dec 3, 2010. 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 8,448,097	High Performance DRC Checking Algorithm for Derived Layer Based Rules Synopsys, Inc. In force Term ends Dec 3, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	High confidence
US 8,661,377	Real Time DRC Assistance for Manual Layout Editing Synopsys, Inc. In force Term ends Dec 3, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	High confidence
US 8,677,297	Low-Overhead Multi-Patterning Design Rule Check Synopsys, Inc. In force Term ends Dec 3, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	High confidence
US 8,713,486	High Performance Design Rule Checking Technique Synopsys, Inc. In force Term ends Dec 3, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	High confidence
US 8,719,738	High Performance Design Rule Checking Technique Synopsys, Inc. In force Term ends Dec 3, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	High confidence
US 8,799,835	Real Time DRC Assistance for Manual Layout Editing Synopsys, Inc. In force Term ends Dec 3, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	High confidence
US 8,843,867	Low-Overhead Multi-Patterning Design Rule Check Synopsys, Inc. In force Term ends Dec 3, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	High confidence
US 9,009,632	High Performance Design Rule Checking Technique Synopsys, Inc. In force Term ends Dec 3, 2030 · Medium confidence	Synopsys, Inc.	In force	Term ends Dec 3, 2030	Term ends Dec 3, 2030	Medium confidence
US 8,453,103	Real Time DRC Assistance for Manual Layout Editing Synopsys, Inc. In force Term ends Dec 28, 2030 · High confidence	Synopsys, Inc.	In force	Term ends Dec 28, 2030	Term ends Dec 28, 2030	High confidence
US 8,352,887	High Performance Design Rule Checking Technique Synopsys, Inc. In force Term ends Jan 11, 2031 · High confidence	Synopsys, Inc.	In force	Term ends Jan 11, 2031	Term ends Jan 11, 2031	High confidence

10 of 10 records shown. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.

Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 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.