1,600 patents currently held

56 more in force are now held by other companies

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

2 more records may belong here and await a decision; they are not counted.

The next term ends in Nov 2026. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

142

Ending by 2030

Nov 2026

Next term end

1,173

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045

notable patents fee due within 90 days all others 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

Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Implied Media Networks US 9,860,588

Cited by 220 later US patents, top 1% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.

Ends May 2033 · High confidence Also notable

Amplifier Circuit and Methods of Operation Thereof US 8,660,277

Cited by 88 later US patents, top 10% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.

Ends Feb 2029 · Medium confidence Also notable

Non-Linear Control of Loudspeakers US 9,883,305

Cited by 29 later US patents, top 10% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2035.

Ends Mar 2035 · High confidence

Formerly held, still cited

Notable

Power Control System for Current Regulated Light Sources US 7,804,256

The most cited patent in this portfolio, cited by 361 later US patents, top 1% of utility patents granted in 2010 in our data. Protection runs to 2029.

now held by Signify Holding B.V.

Ends Mar 2029 · High confidence

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

25 fees due Nov 14 to 30, 2026 · next Nov 14
28 fees due Dec 4 to 30, 2026 · next Dec 4
32 fees due Jan 2 to 30, 2027 · next Jan 2
27 fees due Feb 1 to 28, 2027 · next Feb 1
28 fees due Mar 1 to 29, 2027 · next Mar 1
38 fees due Apr 1 to 30, 2027 · next Apr 1
27 fees due May 5 to 28, 2027 · next May 5
46 fees due Jun 3 to 30, 2027 · next Jun 3
14 fees due Jul 5 to 30, 2027 · next Jul 5
27 fees due Aug 2 to 27, 2027 · next Aug 2
32 fees due Sep 1 to 29, 2027 · next Sep 1
32 fees due Oct 2 to 30, 2027 · next Oct 2
16 fees due Nov 3 to 12, 2027 · next Nov 3

Which patents, and when each one lapses · Pro

Recent changes

Oct 23Assignment recorded on 1 record: Cirrus Logic International Semiconductor Ltd. to Cirrus Logic, Inc. Recorded Oct 23, 2026, executed Apr 7, 2015. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76478, frame 638.
Oct 22Assignment recorded on 1 record: Cirrus Logic International Semiconductor Ltd. to Cirrus Logic, Inc. Recorded Oct 22, 2026, executed Apr 7, 2015. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76469, frame 467.
23 of the patents on this record were granted since Aug 16, 2026
14 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 1,173 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Amplifier Circuit and Methods of Operation Thereof	11 in force	to Feb 2029
System and Method for Bass Enhancement	9 in force	to Nov 2033
Charge Pump Circuit	9 in force	to Feb 2033
Wear Detection	6 in force	to Jun 2040
Multi-Path Analog Front End and Analog-To-Digital Converter for a Signal Processing System	6 in force	to Jan 2035

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,382,300	System-On-Chip (SOC) Integrated Circuit Including Interleaved Delta-Sigma Analog-To-Digital Converter (ADC) In force Term ends Nov 29, 2026 · High confidence	In force	Term ends Nov 29, 2026	High confidence
US 7,432,842	Multi-Channel Pulse Width Modulated Signal Interleave and Inversion In force Term ends Dec 20, 2026 · High confidence	In force	Term ends Dec 20, 2026	High confidence
US 7,454,010	Noise Reduction and Comfort Noise Gain Control Using Bark Band Weiner Filter and Linear Attenuation In force Term ends Dec 31, 2026 · High confidence	In force	Term ends Dec 31, 2026	High confidence
US 10,460,718	Ambient Noise Reduction Arrangements In force Term ends Jan 17, 2027 · High confidence	In force	Term ends Jan 17, 2027	High confidence
US 11,620,975	Ambient Noise Reduction Arrangements In force Term ends Jan 17, 2027 · High confidence	In force	Term ends Jan 17, 2027	High confidence
US 9,705,458	Energy-Efficient Consumer Device Audio Power Output Stage with Gain Control In force Term ends Jan 22, 2027 · High confidence	In force	Term ends Jan 22, 2027	High confidence
US 7,358,880	Magnetic Field Feedback Delta-Sigma Modulator Sensor Circuit In force Term ends Mar 13, 2027 · High confidence	In force	Term ends Mar 13, 2027	High confidence
US 7,856,804	MEMS Process and Device In force Term ends Mar 20, 2027 · High confidence	In force	Term ends Mar 20, 2027	High confidence
US 7,365,669	Low-Delay Signal Processing Based on Highly Oversampled Digital Processing In force Term ends Mar 28, 2027 · High confidence	In force	Term ends Mar 28, 2027	High confidence
US 8,644,523	Digital Circuit Arrangements for Ambient Noise-Reduction In force Term ends Apr 11, 2027 · High confidence	In force	Term ends Apr 11, 2027	High confidence

10 of 1,600 patents shown.

Pro members see all 1,600.

Pro members: see all 1,600 patents

Also on record, not counted in the 1,600: 56 patents in force now held by others · 498 patents ended · 31 applications pending · 40 applications abandoned. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built

Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.

Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.

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

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Cirrus Logic Inc.