The Patent Finder

Glasstech, Inc.

51 patents currently held · Updated Nov 14, 2026
2 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.
8
Ending by 2030
Sep 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 Nov 14, 2026
    The maintenance fee for System and associated for online measurement of the optical characteristics of a glass sheet (US 10,289,930) comes due Nov 14, 2026. Unpaid by May 14, 2027, it lapses early.
  • 1 fee due Jan 14, 2027
    The maintenance fee for System and method for positioning a hot glass sheet (US 9,079,791) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
  • 1 fee due Feb 13, 2027
    The maintenance fee for Station and system for press forming glass sheets (US 10,377,657) comes due Feb 13, 2027. Unpaid by Aug 13, 2027, it lapses early.
  • 1 fee due Jun 8, 2027
    The maintenance fee for Glass sheet support structure (US 9,206,067) comes due Jun 8, 2027. Unpaid by Dec 8, 2027, it lapses early.
  • 1 fee due Jul 9, 2027
    The maintenance fee for Fixture and Method for Optical Alignment in a System for Measuring a Surface in Contoured Glass Sheets (US 11,867,630) comes due Jul 9, 2027. Unpaid by Jan 10, 2028, it lapses early.
  • 1 fee due Aug 2, 2027
    The maintenance fee for System and method for evaluating the performance of a vehicle windshield/wiper combination (US 9,250,067) comes due Aug 2, 2027. Unpaid by Feb 2, 2028, it lapses early.
  • 1 fee due Sep 29, 2027
    The maintenance fee for Method for press forming glass sheets (US 9,296,637) comes due Sep 29, 2027. Unpaid by Mar 29, 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 7,958,750Glass sheet forming system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,132,428Glass sheet forming method
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,453,479Glass sheet bending method
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,716,949Method for positioning glass sheets for forming
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,074,473Method for quenching formed glass sheets
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,049,879Method and apparatus for measuring transmitted optical distortion in glass sheets
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,534,096Quench Station and Method for Formed Glass Sheet Quenching
In force
 · High confidence
In forceHigh confidence
US 10,377,657Station and system for press forming glass sheets
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,011,514Apparatus for Positioning Glass Sheets for Forming
In force
 · High confidence
In forceHigh confidence
US 8,881,551Method for Positioning Glass Sheets for Forming
In force
 · High confidence
In forceHigh confidence
10 of 51 patents shown.
Pro members see all 51.
Pro members: see all 51 patents
Also on record, not counted in the 51: 2 patents in force now held by others · 163 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.

13 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