The Patent Finder

Aida Engineering, Ltd.

75 patents currently held · Updated Nov 14, 2026
3 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 3 name spellings.

3
Ending by 2030
Jul 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.
  • 2 fees due Nov 14, 2026
  • 1 fee due Dec 13, 2026
    The maintenance fee for Workpiece conveying system for a transfer press machine (US 11,673,180) comes due Dec 13, 2026. Unpaid by Jun 14, 2027, it lapses early.
  • 1 fee due Jan 30, 2027
    The maintenance fee for Die cushion apparatus of press machine and die cushion controlling method (US 10,363,594) comes due Jan 30, 2027. Unpaid by Jul 30, 2027, it lapses early.
  • 1 fee due Feb 18, 2027
    The maintenance fee for Tandem press line (US 9,108,379) comes due Feb 18, 2027. Unpaid by Aug 18, 2027, it lapses early.
  • 2 fees due Mar 8 to 29, 2027 · next Mar 8
  • 3 fees due Apr 3 to 17, 2027 · next Apr 3
  • 2 fees due May 28, 2027
  • 2 fees due Jul 12 to 14, 2027 · next Jul 12
  • 1 fee due Sep 30, 2027
    The maintenance fee for Die cushion device (US 10,603,709) comes due Sep 30, 2027. Unpaid by Mar 31, 2028, it lapses early.
  • 1 fee due Oct 28, 2027
    The maintenance fee for Workpiece conveying apparatus for a pressing machine (US 10,632,581) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 of the patents on this record was granted since Aug 16, 2026
  • 2 terms have ended since Aug 16, 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 8,037,735Die cushion apparatus of press machine
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,519,659Electric servo-press, and control device and control method for electric servo press
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,100,052Press machine including bottom dead center position correction control section
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,915,348Breakage prevention mechanism of a transfer apparatus and transfer apparatus use of the breakage prevention mechanism
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,339,861Breakage prevention mechanism of transfer apparatus and transfer apparatus using thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,381,644Motor Drive Control Device
In force
 · High confidence
In forceHigh confidence
US 8,429,811Tool replacement method for tandem press system and tandem press system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,720,328Control device of servo press and method for controlling servo press
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,126,378Servo press apparatus driven by multiple motors
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,108,379Tandem press line
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 75 patents shown.
Pro members see all 75.
Pro members: see all 75 patents
Also on record, not counted in the 75: 3 patents in force now held by others · 67 lapsed for an unpaid fee · 100 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.

8 pending · 1 abandoned · 34 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