QSC, LLC

51 patents currently held · Updated Nov 14, 2026

2 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.

Previously recorded as QSC Audio Products, LLC (to 2015)

Ending by 2030

Jan 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

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.

2 fees due Feb 1 to 22, 2027 · next Feb 1
1 fee due Apr 10, 2027
The maintenance fee for Class-D Amplifier with Nested Feedback Loops (US 11,784,615) comes due Apr 10, 2027. Unpaid by Oct 12, 2027, it lapses early.
2 fees due May 24 to 28, 2027 · next May 24
1 fee due Jul 7, 2027
The maintenance fee for Multi-Way Acoustic Waveguide for a Speaker Assembly (US 10,531,183) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
1 fee due Oct 16, 2027
The maintenance fee for Multi-Way Acoustic Waveguide for a Speaker Assembly (US 11,962,970) comes due Oct 16, 2027. Unpaid by Apr 17, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted since Aug 16, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US D675,188	Loudspeaker array In force Term ends Jan 29, 2027 · From the USPTO record	In force	Term ends Jan 29, 2027	From the USPTO record
US D675,597	Loudspeaker In force Term ends Feb 5, 2027 · From the USPTO record	In force	Term ends Feb 5, 2027	From the USPTO record
US D695,260	Amplifier In force Term ends Dec 10, 2027 · From the USPTO record	In force	Term ends Dec 10, 2027	From the USPTO record
US D715,267	Mixer In force Term ends Oct 14, 2028 · From the USPTO record	In force	Term ends Oct 14, 2028	From the USPTO record
US D719,128	Amplifier In force Term ends Dec 9, 2028 · From the USPTO record	In force	Term ends Dec 9, 2028	From the USPTO record
US D743,942	Mixer In force Term ends Nov 24, 2029 · From the USPTO record	In force	Term ends Nov 24, 2029	From the USPTO record
US D754,096	Amplifier In force Term ends Apr 19, 2030 · From the USPTO record	In force	Term ends Apr 19, 2030	From the USPTO record
US D772,200	Mixer In force Term ends Nov 22, 2031 · From the USPTO record	In force	Term ends Nov 22, 2031	From the USPTO record
US D783,001	Mixer In force Term ends Apr 4, 2032 · From the USPTO record	In force	Term ends Apr 4, 2032	From the USPTO record
US D784,288	Amplifier In force Term ends Apr 18, 2032 · From the USPTO record	In force	Term ends Apr 18, 2032	From the USPTO record

10 of 51 patents shown.

Pro members see all 51.

Pro members: see all 51 patents

Also on record, not counted in the 51: 2 patents in force now held by others · 3 lapsed for an unpaid fee · 29 ended at full term. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

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

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

12 pending · 1 abandoned · 2 no status recorded

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