Inventchip Technology Co., Ltd.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Jan 2039
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 Apr 30, 2027The maintenance fee for Gate leakage current monitor apparatus and control method (US 11,804,833) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
- 1 fee due May 28, 2027The maintenance fee for Power switch drive circuit and device (US 11,831,307) comes due May 28, 2027. Unpaid by Nov 29, 2027, it lapses early.
- 1 fee due Sep 12, 2027The maintenance fee for Totem-pole bridgeless power factor correction device and power supply (US 11,929,669) comes due Sep 12, 2027. Unpaid by Mar 13, 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.
Showing 1 to 7 of 7
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,165,423 | Power switch drive circuit and device In force · From the USPTO record | In force | From the USPTO record | |
| US 11,611,339 | Power Switch Drive Circuit and Device In force · Low confidence | In force | Low confidence | |
| US 11,831,307 | Power switch drive circuit and device In force · From the USPTO record | In force | From the USPTO record | |
| US 11,804,833 | Gate leakage current monitor apparatus and control method In force · From the USPTO record | In force | From the USPTO record | |
| US 11,929,669 | Totem-pole bridgeless power factor correction device and power supply In force · From the USPTO record | In force | From the USPTO record | |
| US 12,356,679 | Trench gate power MOSFET and manufacturing method therefor In force · From the USPTO record | In force | From the USPTO record | |
| US 12,358,380 | Pre-charge apparatus and control method In force · From the USPTO record | In force | From the USPTO record |
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 · 1 no status recorded