0 patents currently held, every record listed here

7 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.

This portfolio holds none of the 7 US patents in force on its record. from the record

Of the 7 now held by other companies, 7 name Cirrus Logic Inc. as their current owner. Each row says so.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

none

Next term end

When these terms end

Each bar runs from grant to computed term end. 2016 to 2033.

US 9,525,425 Asynchronous Sample Rate Converter Oct 25, 2032

US 9,307,323 System and Method for Bass Enhancement Nov 22, 2032

US 9,386,386 System and Method for Audio Enhancement of a Consumer Electronics Device Jan 21, 2033

US 9,503,070 Signal Conversion System and Method Mar 6, 2033

US 9,860,588 Implied Media Networks May 8, 2033

US 9,516,443 Non-Linear Control of Loudspeakers Jun 7, 2033

US 9,900,690 Control and Protection of Loudspeakers Sep 24, 2033

20202024202820322033

Every computed term in this portfolio is shown above.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 patents

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

None of the currently held patents qualifies as notable.

Formerly held, still cited

Notable

Implied Media Networks US 9,860,588

The most cited patent in this portfolio, cited by 220 later US patents, top 1% of utility patents granted in 2018 in our data. Protection runs to 2033.

now held by Cirrus Logic, Inc.

Ends May 2033 · High confidence

Fee deadlines

No maintenance fee falls due on this company's record before Nov 10, 2027.

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

Patents held now

Soonest term end first.

Also on record: 7 patents in force now held by others · 6 patents ended · 4 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.

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

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