The Patent Finder

Appulse Power Inc.

43 patents currently held · Updated Nov 14, 2026
14 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.
0
Ending by 2030
Aug 2033
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 Dec 6 to 13, 2026 · next Dec 6
  • 1 fee due Feb 13, 2027
    The maintenance fee for Flyback Converter (US 10,381,936) comes due Feb 13, 2027. Unpaid by Aug 13, 2027, it lapses early.
  • 1 fee due Mar 17, 2027
    The maintenance fee for Power Converter with Active Clamp (US 10,418,912) comes due Mar 17, 2027. Unpaid by Sep 17, 2027, it lapses early.
  • 4 fees due Apr 8 to 29, 2027 · next Apr 8
  • 1 fee due May 26, 2027
    The maintenance fee for Switched-Mode Power Controller with Multi-Mode Startup (US 10,491,125) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
  • 2 fees due Jul 9 to 28, 2027 · next Jul 9
  • 1 fee due Aug 4, 2027
    The maintenance fee for Auxiliary Power Supply for Switch-Mode Power Supplies (US 10,554,132) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
  • 1 fee due Nov 7, 2027
    The maintenance fee for Merged voltage-divider forward converter (US 11,979,091) comes due Nov 7, 2027. Unpaid by May 8, 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 8,937,818Low-Volume Programmable-Output PFC Rectifier with Dynamic Efficiency and Transient Response Optimization
In force
 · High confidence
In forceHigh confidence
US 10,381,936Flyback Converter
In force
 · High confidence
In forceHigh confidence
US 10,903,749Flyback Converter
In force
 · High confidence
In forceHigh confidence
US 10,135,344Lossless Snubber Circuits
In force
 · High confidence
In forceHigh confidence
US 10,454,379Lossless Snubber Circuits
In force
 · High confidence
In forceHigh confidence
US 10,811,979Lossless Snubber Circuits
In force
 · High confidence
In forceHigh confidence
US 10,291,134Switching Mode Power Supply with an Anti-Windup Circuit Including a Voltage Clamping Circuit
In force
 · High confidence
In forceHigh confidence
US 10,897,207Switching Mode Power Supply with a Voltage Clamping Circuit
In force
 · High confidence
In forceHigh confidence
US 11,271,485Switching mode power supply with a voltage clamping circuit
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,621,641Switching Mode Power Supply with a Voltage Clamping Circuit
In force
 · Medium confidence
In forceMedium confidence
10 of 43 patents shown.
Pro members see all 43.
Pro members: see all 43 patents
Also on record, not counted in the 43: 14 patents in force now held by others. 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

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