The Patent Finder
ZT

Zev Technologies LLC

First filing 2012
OverviewNotableFeesChangesFamiliesPatent listSources & methods

27 patents currently held

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

The next term ends in Jun 2029. from the record

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
3
Ending by 2030
Jun 2029
Next term end
17
Patent families

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
notable patents all others Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size.

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 22, 2027
    The maintenance fee for Firearm Barrel (US 10,451,373) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
  • 1 fee due Jul 19, 2027
    The maintenance fee for Integrated Leveler and Rail Platform Assembly for a Firearm (US 9,239,208) comes due Jul 19, 2027. Unpaid by Jan 19, 2028, it lapses early.
  • 1 fee due Nov 10, 2027
    The maintenance fee for Lock Up System for a Handguard (US 9,335,117) comes due Nov 10, 2027. Unpaid by May 10, 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

What they patent

The 5 largest of its 17 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Modular Handgun5 in forceto Jan 2037
Accessory Mounting System for Firearms3 in forceto Dec 2034
Firearm Accessory Mounting System2 in forceto Apr 2038
Firing Pin Assembly2 in forceto Feb 2036
Lock Up System for a Handguard2 in forceto Sep 2034

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US D732,629Slide for a Semiautomatic Firearm
In force
 · High confidence
In forceHigh confidence
US D767,071Firearm Barrel with Dimpled Surface
In force
 · High confidence
In forceHigh confidence
US D771,215Firing Pin for a Firearm
In force
 · High confidence
In forceHigh confidence
US D777,872Handgun Slide with Grooved Design Pattern
In force
 · High confidence
In forceHigh confidence
US 8,832,983Firearm with Interchangeable Calibers And/Or Improved Sights
In force
 · High confidence
In forceHigh confidence
US RE47,335Firearm with Interchangeable Calibers And/Or Improved Sights
In force
 · Low confidence
In forceLow confidence
US D803,341Handgun Slide
In force
 · High confidence
In forceHigh confidence
US 9,239,208Integrated Leveler and Rail Platform Assembly for a Firearm
In force
 · High confidence
In forceHigh confidence
US 9,335,117Lock Up System for a Handguard
In force
 · High confidence
In forceHigh confidence
US 9,476,673Method of Locking a Handguard to an Upper Receiver of a Firearm
In force
 · High confidence
In forceHigh confidence
10 of 27 patents shown.
Pro members see all 27.
Pro members: see all 27 patents
Also on record, not counted in the 27: 1 patent ended · 3 applications abandoned. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
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