The Patent Finder

Lapto Co., Ltd.

7 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Dec 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 7, 2027
    The maintenance fee for Organic electroluminescence device and polycyclic compound for organic electroluminescence device (US 11,812,659) comes due May 7, 2027. Unpaid by Nov 8, 2027, it lapses early.
  • 1 fee due Jul 16, 2027
    The maintenance fee for Organic electroluminescence device and compound for organic electroluminescence device (US 11,877,512) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
  • 1 fee due Oct 9, 2027
    The maintenance fee for Tribenzazole amine derivative and organic electroluminescent device comprising same (US 11,952,372) comes due Oct 9, 2027. Unpaid by Apr 10, 2028, it lapses early.
  • 1 fee due Nov 7, 2027
    The maintenance fee for Organic electroluminescence device and compound for organic electroluminescence device (US 11,980,091) comes due Nov 7, 2027. Unpaid by May 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 7 of 7

PatentTitleStatus Expires Confidence
US 11,569,461Organic electroluminescence device and organometallic compound for organic electroluminescence device
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,952,372Tribenzazole amine derivative and organic electroluminescent device comprising same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,421,255Luminescence device and polycyclic compound for luminescence device
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,980,091Organic electroluminescence device and compound for organic electroluminescence device
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,812,659Organic electroluminescence device and polycyclic compound for organic electroluminescence device
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,497,369Organic Compounds and Organic Light Emitting Display Device Using the Same
In force
 · High confidence
In forceHigh confidence
US 11,877,512Organic electroluminescence device and compound for organic electroluminescence device
In force
 · From the USPTO record
In forceFrom the USPTO record

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 · 1 abandoned · 1 no status recorded

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