Power Systems Technologies, Ltd.
5 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.
Recorded under 2 name spellings.
5
Ending by 2030
Dec 2026
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.
- 2 fees due Jan 7 to 21, 2027 · next Jan 7
- 2 fees due Feb 4 to 11, 2027 · next Feb 4
- 1 fee due May 17, 2027The maintenance fee for Controller for a power converter and method of operating the same (US 9,190,898) comes due May 17, 2027. Unpaid by Nov 17, 2027, it lapses early.
- 1 fee due Jun 15, 2027The maintenance fee for Magnetic device and power converter employing the same (US 9,214,264) comes due Jun 15, 2027. Unpaid by Dec 15, 2027, it lapses early.
- 1 fee due Jul 19, 2027The maintenance fee for Controller including a common current-sense device for power switches of a power converter (US 9,240,712) comes due Jul 19, 2027. Unpaid by Jan 19, 2028, it lapses early.
- 1 fee due Sep 29, 2027The maintenance fee for Method for estimating power of a power converter (US 9,300,206) comes due Sep 29, 2027. Unpaid by Mar 29, 2028, 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 7,688,597 | Power supply circuit with three-dimensionally arranged circuit carriers, and production method In force · From the USPTO record | In force | From the USPTO record | |
| US 7,545,654 | Control Circuit for Current and Voltage Control in a Switching Power Supply In force · High confidence | In force | High confidence | |
| US 8,072,783 | Input circuit for a switch-mode power supply In force · From the USPTO record | In force | From the USPTO record | |
| US 8,638,578 | Power Converter Including a Charge Pump Employable in a Power Adapter In force · High confidence | In force | High confidence | |
| US 9,077,248 | Start-up circuit for a power adapter In force · From the USPTO record | In force | From the USPTO record | |
| US 8,488,355 | Driver for a Synchronous Rectifier and Power Converter Employing the Same In force · High confidence | In force | High confidence | |
| US 8,767,418 | Control system for a power converter and method of operating the same In force · From the USPTO record | In force | From the USPTO record | |
| US 8,976,549 | Startup Circuit Including First and Second Schmitt Triggers and Power Converter Employing the Same In force · High confidence | In force | High confidence | |
| US 9,088,216 | Controller for a synchronous rectifier switch In force · From the USPTO record | In force | From the USPTO record | |
| US 9,106,130 | Magnetic device and power converter employing the same In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 17: 5 patents in force now held by others · 5 lapsed for an unpaid fee · 1 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.
9 no status recorded