The Patent Finder

Charm Sciences, Inc.

34 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6
Ending by 2030
Jan 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 Dec 16, 2026
    The maintenance fee for Detecting a high molecular weight substance (US 9,057,724) comes due Dec 16, 2026. Unpaid by Jun 16, 2027, it lapses early.
  • 1 fee due Mar 10, 2027
    The maintenance fee for Growth plate devices, kits and assemblies (US 10,407,654) comes due Mar 10, 2027. Unpaid by Sep 10, 2027, it lapses early.
  • 1 fee due Apr 6, 2027
    The maintenance fee for Method and test strip for detection of residues (US 9,151,753) comes due Apr 6, 2027. Unpaid by Oct 6, 2027, it lapses early.
  • 1 fee due Jun 3, 2027
    The maintenance fee for Plate reader observation methods and operation (US 10,495,563) comes due Jun 3, 2027. Unpaid by Dec 3, 2027, it lapses early.
  • 1 fee due Jul 12, 2027
    The maintenance fee for Method and test strip for detecting residues (US 9,234,889) comes due Jul 12, 2027. Unpaid by Jan 12, 2028, it lapses early.
  • 1 fee due Aug 18, 2027
    The maintenance fee for Plate reader (US 10,563,164) comes due Aug 18, 2027. Unpaid by Feb 18, 2028, it lapses early.
  • 1 fee due Sep 19, 2027
    The maintenance fee for Handheld luminometer and front end platform assembly (US 11,933,665) comes due Sep 19, 2027. Unpaid by Mar 20, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 of the patents on this record was 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 8,663,975Method and apparatus for reducing luminescent test result intereferences (continuation)
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,709,792Lateral flow test kit and method for detecting an analyte
In force
 · From the USPTO record
In forceFrom the USPTO record
US D694,425Recognition test strip
In force
 · From the USPTO record
In forceFrom the USPTO record
US D714,955Recognition test strip
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,475,731Lateral flow assay reader with transparent barrier in insert
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,493,288Resealable moisture tight containers
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,976,962Assay analysis
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,254,233Assay analysis
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,002,683Assay analysis
In force (reinstated)
 · From the USPTO record
In force (reinstated)From the USPTO record
US 9,234,889Method and test strip for detecting residues
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 34 patents shown.
Pro members see all 34.
Pro members: see all 34 patents
Also on record, not counted in the 34: 4 lapsed for an unpaid fee · 43 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.

10 pending · 6 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