The Patent Finder

Temasek Polytechnic

19 patents currently held · Updated Nov 14, 2026
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

1
Ending by 2030
Jun 2030
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 30, 2026
    The maintenance fee for Flow System of a Dialysis Device and a Portable Dialysis Device (US 9,067,017) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
  • 1 fee due Jan 9, 2027
    The maintenance fee for Hydrogen generating system (US 10,343,905) comes due Jan 9, 2027. Unpaid by Jul 9, 2027, it lapses early.
  • 1 fee due Feb 8, 2027
    The maintenance fee for Biomarker Detection System (US 11,719,632) comes due Feb 8, 2027. Unpaid by Aug 9, 2027, it lapses early.
  • 1 fee due Mar 22, 2027
    The maintenance fee for Sensing system for detecting a substance in a dialysate (US 9,138,524) comes due Mar 22, 2027. Unpaid by Sep 22, 2027, it lapses early.
  • 1 fee due Jul 26, 2027
    The maintenance fee for Sorbent for a Dialysis Device (US 9,242,036) comes due Jul 26, 2027. Unpaid by Jan 26, 2028, 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.
PatentTitleStatus Expires Confidence
US 11,590,272Sorbent for a Dialysis Device
In force
 · Medium confidence
In forceMedium confidence
US 8,440,441Method of preparing a substrate for immobilization of functional substances thereon and the substrate obtained therefrom
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,561,811Substrate for immobilizing functional substances and method for preparing the same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,067,017Flow System of a Dialysis Device and a Portable Dialysis Device
In force
 · High confidence
In forceHigh confidence
US 9,242,036Sorbent for a Dialysis Device
In force
 · High confidence
In forceHigh confidence
US 9,138,524Sensing system for detecting a substance in a dialysate
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,135,347Dialysis device and method of dialysis
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,780,395Fuel cell apparatus and method of operation
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,018,607Sensing system for detecting a substance in a dialysate
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,151,863Optical Grating
In force
 · High confidence
In forceHigh confidence
10 of 19 patents shown.
Pro members see all 19.
Pro members: see all 19 patents
Also on record, not counted in the 19: 1 patent in force now held by others · 3 lapsed for an unpaid fee · 3 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 pending · 2 abandoned · 5 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