The Patent Finder

Lamberti S.p.A.

37 patents currently held · Updated Nov 14, 2026
6 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.

2
Ending by 2030
Oct 2028
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 Mar 15, 2027
    The maintenance fee for Herbicidal composition (US 9,131,679) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, it lapses early.
  • 1 fee due Apr 15, 2027
    The maintenance fee for Cosmetic and household care composition (US 10,441,524) comes due Apr 15, 2027. Unpaid by Oct 15, 2027, it lapses early.
  • 1 fee due May 12, 2027
    The maintenance fee for Photocurable compositions (US 10,471,633) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
  • 1 fee due Aug 4, 2027
    The maintenance fee for Aqueous inkjet inks for inkjet printing (US 10,549,549) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
  • 1 fee due Sep 24, 2027
    The maintenance fee for Esteramides and subterranean treatment fluids containing said esteramides (US 10,597,577) comes due Sep 24, 2027. Unpaid by Mar 24, 2028, it lapses early.
  • 1 fee due Oct 7, 2027
    The maintenance fee for Method of increasing lubricity of wellbore fluids (US 10,611,948) comes due Oct 7, 2027. Unpaid by Apr 7, 2028, it lapses early.
  • 1 fee due Nov 10, 2027
    The maintenance fee for Aqueous adjuvant concentrates with improved spray drift properties (US 9,332,763) comes due Nov 10, 2027. Unpaid by May 10, 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 8,501,932Procedure for the preparation of purified cationic guar
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,932,997Anti-accretion agents for drilling fluids
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,466,092Clay inhibitors for the drilling industry
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,034,801Clay Inhibitors for the Drilling Industry
In force
 · Medium confidence
In forceMedium confidence
US 9,034,088Inks for Inkjet Printers
In force
 · High confidence
In forceHigh confidence
US 9,332,763Aqueous adjuvant concentrates with improved spray drift properties
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,441,524Cosmetic and household care composition
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,993,900Cosmetic and household care compositions
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,611,418Rheology modifier for drilling and well treatment fluids
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,131,679Herbicidal composition
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 37 patents shown.
Pro members see all 37.
Pro members: see all 37 patents
Also on record, not counted in the 37: 6 patents in force now held by others · 32 lapsed for an unpaid fee · 7 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.

4 pending · 25 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