The Patent Finder

Sigma Powertrain, Inc.

14 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

0
Ending by 2030
Jan 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 Apr 17, 2027
    The maintenance fee for Method for engaging and disengaging clutch elements of a transmission (US 11,788,586) comes due Apr 17, 2027. Unpaid by Oct 18, 2027, it lapses early.
  • 1 fee due May 28, 2027
    The maintenance fee for Driveline disconnect assembly (US 11,828,335) comes due May 28, 2027. Unpaid by Nov 29, 2027, it lapses early.
  • 2 fees due Jul 2, 2027
  • 1 fee due Aug 13, 2027
    The maintenance fee for Electromagnetic actuation assembly (US 11,901,790) comes due Aug 13, 2027. Unpaid by Feb 14, 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 10,781,920Drive systems including transmissions and magnetic coupling devices for electric and hybrid electric vehicles
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,781,891Drive system including a transmission and magnetic coupling device for an electric vehicle
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,711,867Transmission assembly and method of using same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,821,823Powertrain assembly and method of using same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,139,097Electromagnetic actuation assembly
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,326,692Rotational control assembly for a vehicle transmission
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,901,790Electromagnetic actuation assembly
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,858,481Rotational lock module assembly
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,828,335Driveline disconnect assembly
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,788,586Method for engaging and disengaging clutch elements of a transmission
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 14 patents shown.
Pro members see all 14.
Pro members: see all 14 patents
Also on record, not counted in the 14: 1 lapsed for an unpaid fee. 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 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