Polar Semiconductor, LLC
7 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.
4
Ending by 2030
Aug 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 Feb 20, 2027The maintenance fee for Floating-shield triple-gate MOSFET (US 10,388,783) comes due Feb 20, 2027. Unpaid by Aug 20, 2027, it lapses early.
- 1 fee due Aug 23, 2027The maintenance fee for Anti-snapback circuitry for metal oxide semiconductor (MOS) transistor (US 9,269,705) comes due Aug 23, 2027. Unpaid by Feb 23, 2028, it lapses early.
- 1 fee due Sep 3, 2027The maintenance fee for Trench Semiconductor Device Layout Configurations (US 10,580,861) comes due Sep 3, 2027. Unpaid by Mar 3, 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 7,466,004 | Diode structure to suppress parasitic current In force · From the USPTO record | In force | From the USPTO record | |
| US 8,461,661 | Locos nitride capping of deep trench polysilicon fill In force · From the USPTO record | In force | From the USPTO record | |
| US 7,915,129 | Method of fabricating high-voltage metal oxide semiconductor transistor devices In force (reinstated) · From the USPTO record | In force (reinstated) | From the USPTO record | |
| US 8,044,699 | Differential high voltage level shifter In force (reinstated) · From the USPTO record | In force (reinstated) | From the USPTO record | |
| US 8,891,262 | Series switch bridgeless power supply In force (reinstated) · From the USPTO record | In force (reinstated) | From the USPTO record | |
| US 8,994,152 | Metal Shield for Integrated Circuits In force (reinstated) · High confidence | In force (reinstated) | High confidence | |
| US 9,269,705 | Anti-snapback circuitry for metal oxide semiconductor (MOS) transistor In force · From the USPTO record | In force | From the USPTO record | |
| US 9,704,765 | Method of Controlling Etch-Pattern Density and Device Made Using Such Method In force · High confidence | In force | High confidence | |
| US 10,580,861 | Trench Semiconductor Device Layout Configurations In force · High confidence | In force | High confidence | |
| US 9,899,343 | High Voltage Tolerant Bonding Pad Structure for Trench-Based Semiconductor Devices In force · High confidence | In force | High confidence |
Also on record, not counted in the 20: 7 patents in force now held by others · 17 lapsed for an unpaid fee · 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.
3 abandoned · 8 no status recorded