The Patent Finder

Intellectual Keystone Technology LLC

24 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
16
Ending by 2030
Jan 2027
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 Sep 22, 2027
    The maintenance fee for Solar Cell (US 9,293,614) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
  • 1 fee due Oct 12, 2027
    The maintenance fee for Thin Film Type Solar Cell and Fabrication Method Thereof (US 9,312,405) comes due Oct 12, 2027. Unpaid by Apr 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 term has ended 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.
PatentTitleStatus Expires Confidence
US 7,486,285DA converter, data line driving circuit, electro-optical device, driving method thereof, and electronic apparatus
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,648,729Mask, method of manufacturing mask, device for manufacturing mask, method of manufacturing layer of luminescent material, electro-optical device, and electronic device
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,732,003Bank forming method, wiring pattern forming method, electro-optical device, and electronic apparatus
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,913,044Electronic circuit, method of driving the same, electro-optical device, and electronic apparatus
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,884,375Solar Cell, Uneven Surface on an Insulation Layer as a Screen Mesh Pattern, and Manufacturing Method Thereof
In force
 · High confidence
In forceHigh confidence
US 8,227,881Solar cell and its method of manufacture
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,858,432Method of manufacturing solar cells with buried contacts with a laser
In force
 · High confidence
In forceHigh confidence
US 7,724,245Electronic circuit, method of driving the same, electro-optical device, and electronic apparatus
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,558,104Solar cell
In force
 · High confidence
In forceHigh confidence
US 7,864,139Organic EL device, driving method thereof, and electronic apparatus
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 24 patents shown.
Pro members see all 24.
Pro members: see all 24 patents
Also on record, not counted in the 24: 3 lapsed for an unpaid fee · 119 ended at full term. 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.

2 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