The Patent Finder
JM

Johns Manville

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

508 patents currently held

3 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.
1 more record may belong here and awaits a decision; it is not counted.

The next term ends in Dec 2026. from the record

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
120
Ending by 2030
Dec 2026
Next term end
286
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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.
  • 5 fees due Nov 19 to 30, 2026 · next Nov 19
  • 10 fees due Dec 2 to 30, 2026 · next Dec 2
  • 6 fees due Jan 2 to 30, 2027 · next Jan 2
  • 10 fees due Feb 4 to 28, 2027 · next Feb 4
  • 6 fees due Mar 10 to 29, 2027 · next Mar 10
  • 10 fees due Apr 1 to 30, 2027 · next Apr 1
  • 11 fees due May 10 to 28, 2027 · next May 10
  • 8 fees due Jun 3 to 26, 2027 · next Jun 3
  • 5 fees due Jul 5 to 30, 2027 · next Jul 5
  • 11 fees due Aug 18 to 27, 2027 · next Aug 18
  • 5 fees due Sep 17 to 26, 2027 · next Sep 17
  • 14 fees due Oct 7 to 28, 2027 · next Oct 7
  • 1 fee due Nov 12, 2027
    The maintenance fee for Roofing Compositions Comprising Linear Low Density Polyethylene (US 10,647,839) comes due Nov 12, 2027. Unpaid by May 12, 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 17, 2026
  • 10 terms have ended since Aug 17, 2026

What they patent

The 5 largest of its 286 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US 9,394,199Modified Fibers for Use in the Formation of Thermoplastic Fiber-Reinforced Composite Articles and Process
In force
 · Medium confidence
In forceMedium confidence
US 7,946,131Method for Producing Reactive Raw Material for Manufacture of Glass Suitable Fiberization
In force
 · High confidence
In forceHigh confidence
US 7,601,282Processes for Forming a Fiber-Reinforced Product
In force
 · High confidence
In forceHigh confidence
US 7,497,909High-Reach Insulation Application System and Method
In force
 · High confidence
In forceHigh confidence
US 7,520,935Sprayed Insulation Application System Having Variably Locatable Components
In force
 · High confidence
In forceHigh confidence
US 7,476,021Roofing Membrane Temperature Indicator
In force
 · High confidence
In forceHigh confidence
US 7,785,685Tabless Faced Insulation Assembly
In force
 · High confidence
In forceHigh confidence
US 7,404,260Gauge and Method for Indicating One or More Properties of a Loose-Fill Insulation
In force
 · High confidence
In forceHigh confidence
US 7,662,221Spray Applied Building Wrap Coating Material, Spray Applied Building Wrap, and Building Construction Assembly
In force
 · High confidence
In forceHigh confidence
US 7,803,429Method of Coating Fibers
In force
 · High confidence
In forceHigh confidence
10 of 508 patents shown.
Pro members see all 508.
Pro members: see all 508 patents
Also on record, not counted in the 508: 3 patents in force now held by others · 118 patents ended · 50 applications pending · 204 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 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited