The Patent Finder

Trojan Technologies Group ULC

11 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.
0
Ending by 2030
Sep 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 Dec 18, 2026
    The maintenance fee for Radiation source cleaning system and module containing same (US 10,322,947) comes due Dec 18, 2026. Unpaid by Jun 21, 2027, it lapses early.
  • 1 fee due Mar 26, 2027
    The maintenance fee for Lamp with temperature control (US 11,769,658) comes due Mar 26, 2027. Unpaid by Sep 27, 2027, it lapses early.
  • 1 fee due May 7, 2027
    The maintenance fee for pH dependent soluble polymers (US 11,807,833) comes due May 7, 2027. Unpaid by Nov 8, 2027, it lapses early.
  • 1 fee due Jul 30, 2027
    The maintenance fee for UV radiation source assembly (US 11,887,836) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
  • 1 fee due Oct 16, 2027
    The maintenance fee for Ultraviolet Lamp Output Modulation (US 11,963,271) comes due Oct 16, 2027. Unpaid by Apr 17, 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 10,322,947Radiation source cleaning system and module containing same
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,947,129Fluid disinfection with ultraviolet radiation and a chemical disinfectant
In force
 · From the USPTO record
In forceFrom the USPTO record
US D1,069,185Lamp bulb
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,035,436Lamp Sensor Modulation of a Power Supply
In force
 · High confidence
In forceHigh confidence
US 11,963,271Ultraviolet Lamp Output Modulation
In force
 · High confidence
In forceHigh confidence
US 11,807,833pH dependent soluble polymers
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,769,658Lamp with temperature control
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,460,161Device for cleaning a surface
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,610,770Uv Radiation Source Assembly
In force
 · High confidence
In forceHigh confidence
US 11,887,836UV radiation source assembly
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 11 patents shown.
Pro members see all 11.
Pro members: see all 11 patents
Also on record, not counted in the 11: 1 patent in force now held by others · 2 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.

7 pending · 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