ActionPower Corp.

20 patents currently held · Updated Nov 14, 2026

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

Ending by 2030

Jul 2042

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 8, 2027
1 fee due Mar 5, 2027
The maintenance fee for Method for speech recognition with grapheme information (US 11,749,260) comes due Mar 5, 2027. Unpaid by Sep 7, 2027, it lapses early.
1 fee due Jun 12, 2027
The maintenance fee for Method for error detection by using top-down method (US 11,841,737) comes due Jun 12, 2027. Unpaid by Dec 13, 2027, it lapses early.
1 fee due Jul 30, 2027
The maintenance fee for Method of generating data by using artificial neural network model having encoder-decoder structure (US 11,887,002) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
4 fees due Oct 23 to 30, 2027 · next Oct 23

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.

Patent	Title	Status	Expires	Confidence
US 11,721,325	Method for generating learning data for speech recognition error detection In force Term ends Jul 27, 2042 · From the USPTO record	In force	Term ends Jul 27, 2042	From the USPTO record
US 11,640,493	Method for Dialogue Summarization with Word Graphs In force Term ends Aug 3, 2042 · High confidence	In force	Term ends Aug 3, 2042	High confidence
US 11,887,002	Method of generating data by using artificial neural network model having encoder-decoder structure In force Term ends Aug 3, 2042 · From the USPTO record	In force	Term ends Aug 3, 2042	From the USPTO record
US 11,749,260	Method for speech recognition with grapheme information In force Term ends Sep 23, 2042 · From the USPTO record	In force	Term ends Sep 23, 2042	From the USPTO record
US 11,720,750	Method for QA with multi-modal information In force Term ends Sep 27, 2042 · From the USPTO record	In force	Term ends Sep 27, 2042	From the USPTO record
US 11,841,737	Method for error detection by using top-down method In force Term ends Oct 20, 2042 · From the USPTO record	In force	Term ends Oct 20, 2042	From the USPTO record
US 11,657,803	Method for Speech Recognition by Using Feedback Information In force Term ends Nov 2, 2042 · High confidence	In force	Term ends Nov 2, 2042	High confidence
US 11,972,752	Method for detecting speech segment from audio considering length of speech segment In force Term ends Nov 2, 2042 · From the USPTO record	In force	Term ends Nov 2, 2042	From the USPTO record
US 12,197,862	Method for identifying a word corresponding to a target word in text information In force Term ends Nov 3, 2042 · From the USPTO record	In force	Term ends Nov 3, 2042	From the USPTO record
US 11,972,756	Method for recognizing the voice of audio containing foreign languages In force Term ends Dec 24, 2042 · From the USPTO record	In force	Term ends Dec 24, 2042	From the USPTO record

10 of 20 patents shown.

Pro members see all 20.

Pro members: see all 20 patents

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.