The Patent Finder

Lenzing Aktiengesellschaft

63 patents currently held · Updated Nov 14, 2026
11 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 15 name spellings.

6
Ending by 2030
Aug 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.
  • 2 fees due Dec 11 to 27, 2026 · next Dec 11
  • 3 fees due Feb 1 to 8, 2027 · next Feb 1
  • 2 fees due Mar 3 to 26, 2027 · next Mar 3
  • 2 fees due Apr 24 to 29, 2027 · next Apr 24
  • 1 fee due May 28, 2027
    The maintenance fee for Method of producing a chemical pulp from a textile material which comprises cellulose and a molded body from the chemical pulp (US 11,828,005) comes due May 28, 2027. Unpaid by Nov 29, 2027, it lapses early.
  • 1 fee due Jun 24, 2027
    The maintenance fee for Cellulose suspension, method for the production and use thereof (US 10,513,564) comes due Jun 24, 2027. Unpaid by Dec 27, 2027, it lapses early.
  • 2 fees due Jul 16, 2027
  • 3 fees due Aug 13 to 25, 2027 · next Aug 13
  • 5 fees due Sep 3 to 30, 2027 · next Sep 3
  • 1 fee due Oct 9, 2027
    The maintenance fee for Process for separating a fibrous target component from textile waste (US 11,952,714) comes due Oct 9, 2027. Unpaid by Apr 10, 2028, it lapses early.
  • 3 fees due Nov 7 to 10, 2027 · next Nov 7

Which patents, and when each one lapses · Pro

Recent changes

  • 2 of the patents on this record were granted since Aug 16, 2026
  • 1 term has 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 8,127,575Wicking fabric and garment made therefrom
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,932,969Microfiber
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,282,877Process of making a hydroentangled product from cellulose fibers
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,070,996Process for the production of flame-retardant viscose fibres
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,334,592Process for the production of a hydroentangled product comprising cellulose fibers
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,400,356Flame-retardant lyocell fibers and use thereof in flame barriers
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,577,723Flame retardant cellulosic man-made fibers
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,873,964Dispersible non-woven fabrics
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,890,487Liquid-retaining sheet and facial mask
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,780,378Process for filtration of fluids and filter apparatus for performing the process
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 63 patents shown.
Pro members see all 63.
Pro members: see all 63 patents
Also on record, not counted in the 63: 11 patents in force now held by others · 31 lapsed for an unpaid fee · 134 ended at full term · 1 surrendered on reissue. 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.

10 pending · 8 abandoned · 85 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