The Patent Finder

Tearscience, Inc.

46 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 3 name spellings.

35
Ending by 2030
Jun 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 23, 2026
    The maintenance fee for Method and apparatus for treating gland dysfunction employing heated medium (US 9,060,843) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
  • 1 fee due Feb 13, 2027
    The maintenance fee for Methods and apparatuses for treatment of meibomian glands (US 10,376,273) comes due Feb 13, 2027. Unpaid by Aug 13, 2027, it lapses early.
  • 1 fee due Mar 17, 2027
    The maintenance fee for Apparatuses and methods for determining tear film break-up time and/or for detecting lid margin contact and blink rates, particularly for diagnosing, measuring, and/or analyzing dry eye conditions and symptoms (US 10,413,174) comes due Mar 17, 2027. Unpaid by Sep 17, 2027, it lapses early.
  • 1 fee due Apr 3, 2027
    The maintenance fee for Ocular surface interferometry (OSI) for imaging, processing, and/or displaying an ocular tear film (US 11,771,317) comes due Apr 3, 2027. Unpaid by Oct 4, 2027, it lapses early.
  • 2 fees due Jun 19 to 24, 2027 · next Jun 19
  • 2 fees due Sep 10, 2027
  • 1 fee due Oct 19, 2027
    The maintenance fee for System for Inner Eyelid Treatment of Meibomian Gland Dysfunction (US 9,314,369) comes due Oct 19, 2027. Unpaid by Apr 19, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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 8,585,204Tear Film Measurement
In force
 · Medium confidence
In forceMedium confidence
US 8,591,033Tear Film Measurement
In force
 · Medium confidence
In forceMedium confidence
US 7,976,573Inner Eyelid Heat and Pressure Treatment for Treating Meibomian Gland Dysfunction
In force
 · Medium confidence
In forceMedium confidence
US 7,981,146Inner Eyelid Treatment for Treating Meibomian Gland Dysfunction
In force
 · Medium confidence
In forceMedium confidence
US 8,007,524Heat Treatment and Heat Loss Reduction for Treating Meibomian Gland Dysfunction
In force
 · Low confidence
In forceLow confidence
US 7,758,190Tear Film Measurement
In force
 · High confidence
In forceHigh confidence
US 8,192,026Tear Film Measurement
In force
 · High confidence
In forceHigh confidence
US 8,249,695Meibomian Gland Imaging
In force
 · High confidence
In forceHigh confidence
US 8,137,390System for Providing Heat Treatment and Heat Loss Reduction for Treating Meibomian Gland Dysfunction
In force
 · Low confidence
In forceLow confidence
US 8,128,673System for Inner Eyelid Heat and Pressure Treatment for Treating Meibomian Gland Dysfunction
In force
 · Low confidence
In forceLow confidence
10 of 46 patents shown.
Pro members see all 46.
Pro members: see all 46 patents
Also on record, not counted in the 46: 15 lapsed for an unpaid fee · 13 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.

1 abandoned · 7 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