Definitive Technology, LLC

10 patents currently held · Updated Nov 14, 2026

1 more in force is now held by another company

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

Ending by 2030

Oct 2028

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.

1 fee due Mar 8, 2027
The maintenance fee for Configurable Noise Cancelling System (US 9,129,588) comes due Mar 8, 2027. Unpaid by Sep 8, 2027, it lapses early.
1 fee due May 10, 2027
The maintenance fee for Ruggedized Sound System (US 9,185,478) comes due May 10, 2027. Unpaid by Nov 10, 2027, it lapses early.
1 fee due Sep 8, 2027
The maintenance fee for Transducer Motor Structure with Enhanced Flux (US 9,282,410) comes due Sep 8, 2027. Unpaid by Mar 8, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

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

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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 7,684,582	Electrodynamic Acoustic Transducer In force Term ends Oct 25, 2028 · High confidence	In force	Term ends Oct 25, 2028	High confidence
US 8,014,545	Ceiling or Wall-Mounted Loudspeaker System with Anti-Diffraction Wave Launch Device In force Term ends May 1, 2030 · High confidence	In force	Term ends May 1, 2030	High confidence
US 9,426,576	Loudspeaker and Electrodynamic Acoustic Transducer with Bulbous Waveguide Tip In force Term ends Jun 16, 2031 · High confidence	In force	Term ends Jun 16, 2031	High confidence
US 8,638,968	Low-Profile Loudspeaker Driver and Enclosure Assembly In force Term ends Aug 24, 2032 · High confidence	In force	Term ends Aug 24, 2032	High confidence
US 8,995,697	Bipolar Speaker with Improved Clarity In force Term ends Dec 9, 2032 · High confidence	In force	Term ends Dec 9, 2032	High confidence
US 9,185,478	Ruggedized Sound System In force Term ends Aug 1, 2033 · High confidence	In force	Term ends Aug 1, 2033	High confidence
US 9,129,588	Configurable Noise Cancelling System In force Term ends Sep 4, 2033 · High confidence	In force	Term ends Sep 4, 2033	High confidence
US 8,971,560	Sound System for Portable Devices In force Term ends Sep 7, 2033 · High confidence	In force	Term ends Sep 7, 2033	High confidence
US 9,282,410	Transducer Motor Structure with Enhanced Flux In force Term ends Jul 22, 2034 · High confidence	In force	Term ends Jul 22, 2034	High confidence
US 9,538,268	Complementary Asymmetric Transducer Configuration for lower distortion and extended range In force Term ends Jan 2, 2035 · High confidence	In force	Term ends Jan 2, 2035	High confidence

Also on record, not counted in the 10: 1 patent in force now held by others · 1 lapsed for an unpaid fee · 8 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

Every application published under this name has become a patent.