The Patent Finder

Mobifren Co., Ltd.

4 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Oct 2039
Next term end

When these terms end

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 May 21, 2027
    The maintenance fee for Headset assembly using bone conduction (US 11,825,258) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 of the patents on this record was granted since Aug 17, 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.

Showing 1 to 4 of 4

PatentTitleStatus Expires Confidence
US 11,691,000Bone Conduction Apparatus Having Tens Therapy Function
In force
 · High confidence
In forceHigh confidence
US 12,126,952Method for Controlling Volume of True Wireless Stereo Earphone Using Bluetooth
In force
 · High confidence
In forceHigh confidence
US 11,825,258Headset assembly using bone conduction
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,741,142TWS Earphone Assembly Capable of Selectively Executing Tes Treatment Function
In force
 · High confidence
In forceHigh confidence
Also on record, not counted in the 4: 2 lapsed for an unpaid fee. 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.

Published applications

Every application published under this name has become a patent.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited