The Patent Finder

Photono Oy

5 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Apr 2034
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 30, 2026
    The maintenance fee for Method and Arrangement for Eye Pressure Measurements (US 11,659,994) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 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.

Showing 1 to 5 of 5

PatentTitleStatus Expires Confidence
US 9,462,947Measurement method and arrangement utilizing electromagnetic waves
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,471,050Method and arrangement for eye pressure measurements
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,659,994Method and Arrangement for Eye Pressure Measurements
In force
 · High confidence
In forceHigh confidence
US 10,765,558Method and arrangement for eye measurements
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,031,809System and method for detecting a wave occurring in/on a membrane
In force
 · From the USPTO record
In forceFrom the USPTO record
Also on record, not counted in the 5: 1 lapsed for an unpaid fee. 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.

2 abandoned · 1 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