The Patent Finder

Bren-Tronics, Inc.

18 patents currently held · Updated Nov 14, 2026
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
4
Ending by 2030
May 2028
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 13, 2027
    The maintenance fee for Foldable battery charger (US 9,160,183) comes due Apr 13, 2027. Unpaid by Oct 13, 2027, it lapses early.
  • 2 fees due Sep 1 to 22, 2027 · next Sep 1

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 D705,167Female connector with contact pads
In force
 · From the USPTO record
In forceFrom the USPTO record
US D717,246Male connector with pogo pin contacts
In force
 · From the USPTO record
In forceFrom the USPTO record
US D730,288Male connector with pogo pin contacts
In force
 · From the USPTO record
In forceFrom the USPTO record
US D730,289Female connector
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,961,225Flexible water-tight seal for a movable component
In force
 · From the USPTO record
In forceFrom the USPTO record
US D811,997Battery charger
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,276,424Adapter for foldable battery charger
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,160,183Foldable battery charger
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,293,858Screw down connector
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,193,363Hybrid Coupling for a Smart Battery System
In force
 · Medium confidence
In forceMedium confidence
10 of 18 patents shown.
Pro members see all 18.
Pro members: see all 18 patents
Also on record, not counted in the 18: 1 patent in force now held by others · 3 lapsed for an unpaid fee · 1 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

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