The Patent Finder

Acclarent, Inc.

220 patents currently held · Updated Nov 14, 2026
50 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.

Recorded under 4 name spellings.

38
Ending by 2030
Nov 2026
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 20 to 27, 2026 · next Dec 20
  • 4 fees due Jan 11 to 30, 2027 · next Jan 11
  • 3 fees due Feb 1 to 20, 2027 · next Feb 1
  • 1 fee due Mar 5, 2027
    The maintenance fee for Devices and Method for Maxillary Sinus Lavage (US 11,744,994) comes due Mar 5, 2027. Unpaid by Sep 7, 2027, it lapses early.
  • 5 fees due Apr 13 to 30, 2027 · next Apr 13
  • 5 fees due May 5 to 28, 2027 · next May 5
  • 8 fees due Jun 5 to 26, 2027 · next Jun 5
  • 3 fees due Jul 7 to 30, 2027 · next Jul 7
  • 4 fees due Aug 4 to 25, 2027 · next Aug 4
  • 2 fees due Sep 12 to 30, 2027 · next Sep 12
  • 6 fees due Oct 2 to 23, 2027 · next Oct 2
  • 1 fee due Nov 5, 2027
    The maintenance fee for Dilation System (US 10,639,462) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

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

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 9,399,121Systems and Methods for Transnasal Dilation of Passageways in the Ear, Nose or Throat
In force
 · Medium confidence
In forceMedium confidence
US 7,559,925Methods and Devices for Facilitating Visualization in a Surgical Environment
In force
 · High confidence
In forceHigh confidence
US 9,089,258Endoscopic Methods and Devices for Transnasal Procedures
In force
 · High confidence
In forceHigh confidence
US 10,874,838Systems and Methods for Transnasal Dilation of Passageways in the Ear, Nose or Throat
In force
 · Medium confidence
In forceMedium confidence
US 8,317,816Balloon Catheters and Methods for Treating Paranasal Sinuses
In force
 · Medium confidence
In forceMedium confidence
US 9,265,407Endoscopic Methods and Devices for Transnasal Procedures
In force
 · Medium confidence
In forceMedium confidence
US 9,463,068Methods and Devices for Protecting Nasal Turbinates
In force
 · High confidence
In forceHigh confidence
US 7,720,521Methods and Devices for Performing Procedures Within the Ear, Nose, Throat and Paranasal Sinuses
In force
 · Medium confidence
In forceMedium confidence
US 9,861,793Corewire Design and Construction for Medical Devices
In force
 · Medium confidence
In forceMedium confidence
US 7,803,150Devices, Systems and Methods Useable for Treating Sinusitis
In force
 · Medium confidence
In forceMedium confidence
10 of 220 patents shown.
Pro members see all 220.
Pro members: see all 220 patents
Also on record, not counted in the 220: 50 patents in force now held by others · 44 lapsed for an unpaid fee · 97 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

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.

32 pending · 105 abandoned · 9 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