Trojan Technologies
3 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.
10
Ending by 2030
Feb 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 Jan 9, 2027The maintenance fee for Fluid treatment system (US 10,343,935) comes due Jan 9, 2027. Unpaid by Jul 9, 2027, it lapses early.
- 1 fee due Feb 25, 2027The maintenance fee for Fluid treatment system (US 9,115,009) comes due Feb 25, 2027. Unpaid by Aug 25, 2027, it lapses early.
- 1 fee due Apr 13, 2027The maintenance fee for Radiation Source Assembly (US 9,155,808) comes due Apr 13, 2027. Unpaid by Oct 13, 2027, it lapses early.
- 1 fee due May 3, 2027The maintenance fee for Fluid treatment system (US 9,174,858) comes due May 3, 2027. Unpaid by Nov 3, 2027, it lapses early.
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.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,148,699 | Fluid Treatment System In force · High confidence | In force | High confidence | |
| US 9,895,457 | Radiation Lamp and Radiation Source Module Incorporating Same In force · High confidence | In force | High confidence | |
| US 8,003,951 | Optical radiation sensor system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,338,808 | Ultraviolet radiation lamp and source module and treatment system containing same In force · From the USPTO record | In force | From the USPTO record | |
| US 7,741,617 | Fluid treatment system In force · From the USPTO record | In force | From the USPTO record | |
| US 7,842,932 | Ultraviolet Radiation Light Emitting Diode Device In force · High confidence | In force | High confidence | |
| US 8,318,007 | Ultraviolet radiation lamp and source module and treatment system containing same In force · From the USPTO record | In force | From the USPTO record | |
| US 9,174,858 | Fluid treatment system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,115,009 | Fluid treatment system In force · From the USPTO record | In force | From the USPTO record | |
| US 8,679,416 | Fluid treatment system In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 23: 3 patents in force now held by others · 42 lapsed for an unpaid fee · 39 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.
8 abandoned · 19 no status recorded