The Patent Finder

Kidde-Fenwal, LLC

42 patents currently held · Updated Nov 14, 2026
18 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 3 name spellings.

5
Ending by 2030
Feb 2027
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 Jan 11, 2027
    The maintenance fee for Exhaust Hood Weight Sensor (US 11,698,196) comes due Jan 11, 2027. Unpaid by Jul 12, 2027, it lapses early.
  • 1 fee due Feb 28, 2027
    The maintenance fee for Fire Protection System for an Enclosure and Method of Fire Protection for an Enclosure (US 11,738,224) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
  • 1 fee due Jun 5, 2027
    The maintenance fee for Pressure Gauges, Pressure Vessel Assemblies, and Methods of Displaying Pressure Within Pressure Vessel Assemblies (US 11,835,408) comes due Jun 5, 2027. Unpaid by Dec 6, 2027, it lapses early.
  • 1 fee due Sep 19, 2027
    The maintenance fee for Noise Reducing Fire Suppression Nozzles (US 11,931,613) comes due Sep 19, 2027. Unpaid by Mar 20, 2028, it lapses early.
  • 1 fee due Oct 23, 2027
    The maintenance fee for Fire Extinguishing Composition and Method of Making (US 11,964,178) comes due Oct 23, 2027. Unpaid by Apr 24, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 2 of the patents on this record were granted 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 8,087,637Self-Regulating Valve for Controlling the Gas Flow in High Pressure Systems
In force
 · High confidence
In forceHigh confidence
US 8,020,833Pressure Gas Release Valve for Fire Suppression
In force
 · High confidence
In forceHigh confidence
US 7,861,792Fire Suppression System
In force
 · High confidence
In forceHigh confidence
US 8,366,955Fire Extinguishing Composition
In force
 · High confidence
In forceHigh confidence
US 8,561,711Dispensing Valve and Method for Dispensing a Fluid Under Pressure
In force
 · High confidence
In forceHigh confidence
US D872,375Fire Extinguisher
In force
 · High confidence
In forceHigh confidence
US 11,058,907Method of Delivering a Fire Extinguishing Agent
In force
 · High confidence
In forceHigh confidence
US 11,738,224Fire Protection System for an Enclosure and Method of Fire Protection for an Enclosure
In force
 · High confidence
In forceHigh confidence
US 11,376,458Fire Protection System for an Enclosure and Method of Fire Protection for an Enclosure
In force
 · High confidence
In forceHigh confidence
US 11,117,007Noise Reducing Fire Suppression Nozzles
In force
 · High confidence
In forceHigh confidence
10 of 42 patents shown.
Pro members see all 42.
Pro members: see all 42 patents
Also on record, not counted in the 42: 18 patents in force now held by others · 1 lapsed for an unpaid fee · 10 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.

6 pending · 4 abandoned · 1 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