The Patent Finder

Polyai Limited

13 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.
0
Ending by 2030
Jan 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 Feb 28, 2027
    The maintenance fee for Dialogue system, a method of obtaining a response from a dialogue system, and a method of training a dialogue system (US 11,741,109) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
  • 1 fee due Jul 2, 2027
    The maintenance fee for System and method for identification and verification (US 11,861,521) comes due Jul 2, 2027. Unpaid by Jan 3, 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 10,664,527Response retrieval system and method
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,847,141Dialogue system and a dialogue method
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,885,906Dialogue system, a dialogue method, a method of generating data for training a dialogue system, a system for generating data for training a dialogue system and a method of training a dialogue system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,210,306Dialogue system, a method of obtaining a response from a dialogue system, and a method of training a dialogue system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,741,109Dialogue system, a method of obtaining a response from a dialogue system, and a method of training a dialogue system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,204,964Systems and methods for conversing with a user
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,132,988Dialogue system, a dialogue method, and a method of training
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,537,661Systems and methods for conversing with a user
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,430,446Dialogue system and a dialogue method
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,861,521System and method for identification and verification
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 13 patents shown.
Pro members see all 13.
Pro members: see all 13 patents
Also on record, not counted in the 13: 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.

1 pending

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited