The Patent Finder

Amt Co., Ltd.

12 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
Oct 2032
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 28, 2027
    The maintenance fee for Testing Apparatus for Semiconductor Chips with Fine-Pitch Bumps (US 11,828,792) comes due May 28, 2027. Unpaid by Nov 29, 2027, it lapses early.
  • 1 fee due Sep 12, 2027
    The maintenance fee for Automatic alignment method of high-pressure gas container (US 11,927,309) comes due Sep 12, 2027. Unpaid by Mar 13, 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 11,021,061Power hybrid integrated management system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,861,122Shelf-stable, preservative-free liquid beverage enhancer products
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,131,218In-wheel motor for a vehicle and a vehicle comprising the motor
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,603,966Device for Automatically Opening/Closing Gas Barrel Valve and Method Therefor
In force
 · Medium confidence
In forceMedium confidence
US 11,378,232Device for automatically opening/closing gas barrel valve and method therefor
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,320,094System for automatically replacing high-pressure gas tank and method thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,512,813High-pressure gas cylinder gasket automatic replacement device
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,619,355Method for Automatically Replacing High-Pressure Gas Barrels
In force
 · High confidence
In forceHigh confidence
US 11,828,792Testing Apparatus for Semiconductor Chips with Fine-Pitch Bumps
In force
 · High confidence
In forceHigh confidence
US 11,982,708Apparatus for Aligning Device Having Fine Pitch, Apparatus for Testing Device Having Fine Pitch, and Device Alignment Method
In force
 · High confidence
In forceHigh confidence
10 of 12 patents shown.
Pro members see all 12.
Pro members: see all 12 patents
Also on record, not counted in the 12: 2 lapsed for an unpaid fee · 28 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.

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