The Patent Finder

Totalmasters Co., Ltd.

6 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
Feb 2038
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 1, 2027
    The maintenance fee for Construction field management equipment and construction field managing method (US 11,715,295) comes due Feb 1, 2027. Unpaid by Aug 2, 2027, it lapses early.
  • 2 fees due Mar 5, 2027
  • 1 fee due Apr 15, 2027
    The maintenance fee for Construction design support apparatus and construction design support method for photovoltaic power generation facilities (US 10,445,439) comes due Apr 15, 2027. Unpaid by Oct 15, 2027, 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 6 of 6

PatentTitleStatus Expires Confidence
US 10,445,439Construction design support apparatus and construction design support method for photovoltaic power generation facilities
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,896,269Support apparatus and design support method for photovoltaic power generation facilities
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,084,833Construction Machine Management System, Construction Machine Management Program, Construction Machine Management Method, Construction Machine, and External Management Device for Construction Machine
In force
 · High confidence
In forceHigh confidence
US 11,747,483Positioning calibration method for construction working machines and its positioning calibration controller
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,715,295Construction field management equipment and construction field managing method
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,748,836Construction site safety management apparatus
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

Every application published under this name has become a patent.

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