246 patents currently held
6 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.
The next term ends in Jan 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
13
Ending by 2030
Jan 2027
Next term end
237
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Jul 2032 · High confidence
Also notable
Ends Oct 2032 · High confidence
Also notable
Ends Jun 2028 · High confidence
A Vertical MOSFET Transistor with a Vertical Capacitor Region
US 9,129,991
Cited by 24 later US patents, top 25% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.
Trench-Gate Resurf Semiconductor Device and Manufacturing Method
US 9,006,822
Renewed at every maintenance window since the 2015 grant; no more fees are due before its term ends in 2032.
Electronic Device Comprising an ESD Device
US 8,159,032
Renewed at every maintenance window since the 2012 grant; no more fees are due before its term ends in 2028.
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 Nov 28 to 30, 2026 · next Nov 28
- 2 fees due Dec 2 to 23, 2026 · next Dec 2
- 1 fee due Jan 2, 2027The maintenance fee for Air-Guided Tape-And-Reel System and Method (US 10,336,480) comes due Jan 2, 2027. Unpaid by Jul 2, 2027, it lapses early.
- 4 fees due Feb 1 to 25, 2027 · next Feb 1
- 6 fees due Mar 3 to 29, 2027 · next Mar 3
- 1 fee due Apr 27, 2027The maintenance fee for Cascode Circuit (US 9,171,837) comes due Apr 27, 2027. Unpaid by Oct 27, 2027, it lapses early.
- 3 fees due May 14 to 17, 2027 · next May 14
- 1 fee due Jun 1, 2027The maintenance fee for Protection Circuit (US 9,203,237) comes due Jun 1, 2027. Unpaid by Dec 1, 2027, it lapses early.
- 4 fees due Jul 5 to 28, 2027 · next Jul 5
- 4 fees due Aug 13 to 23, 2027 · next Aug 13
- 3 fees due Sep 10 to 26, 2027 · next Sep 10
- 2 fees due Oct 5 to 30, 2027 · next Oct 5
- 6 fees due Nov 3 to 14, 2027 · next Nov 3
Recent changes
- 33 of the patents on this record were granted since Aug 17, 2026
What they patent
The 5 largest of its 237 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Adhesive Dispense Unit | 2 in force | to Sep 2041 |
| Cascode Semiconductor | 2 in force | to Apr 2041 |
| Bonding and Indexing Apparatus | 2 in force | to Apr 2041 |
| Air-Guided Tape-And-Reel System and Method | 2 in force | to Jan 2037 |
| Packaged Semiconductor Device with Interior Polygonal Pads | 2 in force | to Apr 2034 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,737,507 | Insulated Gate Field Effect Transistors In force · High confidence | In force | High confidence | |
| US 8,062,974 | Semiconductor Device with Grounding Structure In force · High confidence | In force | High confidence | |
| US 8,169,084 | Bond Pad Structure and Method for Producing Same In force · High confidence | In force | High confidence | |
| US 8,159,032 | Electronic Device Comprising an ESD Device In force · High confidence | In force | High confidence | |
| US 8,184,415 | ESD-Protection Device, a Semiconductor Device and Integrated System in a Package Comprising Such a Device In force · High confidence | In force | High confidence | |
| US 8,357,971 | Trench Gate MOSFET and Method of Manufacturing the Same In force · High confidence | In force | High confidence | |
| US 8,258,916 | Meander Resistor In force · High confidence | In force | High confidence | |
| US 8,344,448 | Semiconductor Device Having an Edge Termination Structure and Method of Manufacture Thereof In force · High confidence | In force | High confidence | |
| US 8,810,004 | Methods, Systems and Devices for Electrostatic Discharge Protection In force · High confidence | In force | High confidence | |
| US 8,390,971 | Protection for an Integrated Circuit In force · High confidence | In force | High confidence |
Also on record, not counted in the 246: 6 patents in force now held by others · 70 patents ended · 200 applications pending · 10 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.