The Patent Finder
MU

Munchkin, Inc.

Filings on record here from 2001, where this site's data begins
OverviewNotableFeesChangesFamiliesPatent listSources & methods

149 patents currently held

2 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.
7 more records may belong here and await a decision; they are not counted.

The next term ends in Jan 2027. from the record

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
41
Ending by 2030
Jan 2027
Next term end
93
Patent families

When these terms end

Held patents by the year their term ends
notable patents fee due within 90 days 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 due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

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 Nov 14, 2026
    The maintenance fee for Container for Spillproof Container Assemblies (US 10,285,520) comes due Nov 14, 2026. Unpaid by May 14, 2027, it lapses early.
  • 1 fee due Dec 9, 2026
    The maintenance fee for Adjustable Width Barrier (US 9,051,770) comes due Dec 9, 2026. Unpaid by Jun 9, 2027, it lapses early.
  • 4 fees due Jan 9 to 30, 2027 · next Jan 9
  • 4 fees due Feb 1 to 20, 2027 · next Feb 1
  • 2 fees due Mar 12 to 29, 2027 · next Mar 12
  • 3 fees due Apr 8 to 17, 2027 · next Apr 8
  • 2 fees due May 19 to 26, 2027 · next May 19
  • 2 fees due Jun 3 to 5, 2027 · next Jun 3
  • 3 fees due Jul 14 to 26, 2027 · next Jul 14
  • 3 fees due Aug 4 to 6, 2027 · next Aug 4
  • 2 fees due Sep 17 to 19, 2027 · next Sep 17
  • 3 fees due Oct 14 to 21, 2027 · next Oct 14

Which patents, and when each one lapses · Pro

Recent changes

  • 2 of the patents on this record were granted since Aug 16, 2026
  • 2 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 93 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Cassette11 in forceto Jun 2040
Non-Spill Drinking Container10 in forceto Oct 2034
Magnetic Sponge Assembly9 in forceto Feb 2041
Container for Spillproof Container Assemblies8 in forceto Aug 2031
Container for Receiving Multiple Flexible Bag Assemblies4 in forceto Dec 2035

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US D674,502Vibration Device
In force
 · High confidence
In forceHigh confidence
US D675,062Container
In force
 · High confidence
In forceHigh confidence
US D680,773Holder
In force
 · High confidence
In forceHigh confidence
US D682,033Container
In force
 · High confidence
In forceHigh confidence
US D683,183Container
In force
 · High confidence
In forceHigh confidence
US D683,588Container
In force
 · High confidence
In forceHigh confidence
US D685,609Container
In force
 · High confidence
In forceHigh confidence
US D695,061Container Cap
In force
 · High confidence
In forceHigh confidence
US D695,541Cassette
In force
 · High confidence
In forceHigh confidence
US D697,095Freezer Tray
In force
 · High confidence
In forceHigh confidence
10 of 149 patents shown.
Pro members see all 149.
Pro members: see all 149 patents
Also on record, not counted in the 149: 2 patents in force now held by others · 75 patents ended · 14 applications pending · 32 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.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
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