The Patent Finder

42Maru Inc.

26 patents currently held · Updated Nov 15, 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.
0
Ending by 2030
Nov 2038
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 Jan 25, 2027
    The maintenance fee for Method and apparatus for generating Q and A model by using adversarial learning (US 11,710,046) comes due Jan 25, 2027. Unpaid by Jul 26, 2027, it lapses early.
  • 1 fee due Feb 15, 2027
    The maintenance fee for Method and System for Improving Performance of Text Summarization (US 11,727,041) comes due Feb 15, 2027. Unpaid by Aug 16, 2027, it lapses early.
  • 2 fees due May 14 to 21, 2027 · next May 14
  • 1 fee due Oct 16, 2027
    The maintenance fee for Method and Device for Reinforcement of Multiple Choice Qa Model Based on Adversarial Learning Techniques (US 11,960,838) comes due Oct 16, 2027. Unpaid by Apr 17, 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.
PatentTitleStatus Expires Confidence
US 11,822,890Method, system, and computer program for artificial intelligence answer
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,373,047Method, system, and computer program for artificial intelligence answer
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,832,004Method, system, and computer program for artificial intelligence answer
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,816,441Device and method for machine reading comprehension question and answer
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,141,532Device and method for machine reading comprehension question and answer
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,315,547Method and system for generating speech recognition training data
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,182,184Method and apparatus for question-answering using a database consist of query vectors
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,664,188Method and Apparatus for Question-Answering Using a Database Consist of Query Vectors
In force
 · Low confidence
In forceLow confidence
US 12,373,671Method and apparatus for generating Q and A model by using adversarial learning
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,288,265Method and apparatus for building a paraphrasing model for question-answering
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 26 patents shown.
Pro members see all 26.
Pro members: see all 26 patents
Also on record, not counted in the 26: 1 patent in force now held by others. 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

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.

4 pending · 5 no status recorded

List them

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