330 patents currently held
8 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.
1 more record may belong here and awaits a decision; it is not counted.
The next term ends in Nov 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
26
Ending by 2030
Nov 2026
Next term end
323
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 14, 2026 · includes USPTO assignment & status data published Nov 14, 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 Oct 2035 · High confidence
Also notable
Ends Sep 2034 · High confidence
Also notable
Ends Dec 2027 · High confidence
Voltage Regulator
US 10,061,335
Cited by 14 later US patents, top 25% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2035.
Electrode for electrocardiogram measurement
US D861,179
The newest of the three, granted 2019. It anchors the portfolio to 2034, later than anything else here.
Semiconductor Integrated Circuit Capable of Directly Coupling Low-Voltage Signals with High-Voltage Signals
US 7,692,456
Renewed at every maintenance window since the 2010 grant; no more fees are due before its term ends in 2027.
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.
- 3 fees due Nov 14 to 30, 2026 · next Nov 14
- 6 fees due Dec 13 to 25, 2026 · next Dec 13
- 8 fees due Jan 4 to 25, 2027 · next Jan 4
- 3 fees due Feb 4 to 18, 2027 · next Feb 4
- 5 fees due Mar 3 to 26, 2027 · next Mar 3
- 5 fees due Apr 13 to 22, 2027 · next Apr 13
- 3 fees due May 5 to 12, 2027 · next May 5
- 11 fees due Jun 3 to 26, 2027 · next Jun 3
- 1 fee due Jul 12, 2027The maintenance fee for Electronic Device (US 9,236,747) comes due Jul 12, 2027. Unpaid by Jan 12, 2028, it lapses early.
- 8 fees due Aug 6 to 27, 2027 · next Aug 6
- 9 fees due Sep 3 to 29, 2027 · next Sep 3
- 7 fees due Oct 2 to 28, 2027 · next Oct 2
- 2 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- 7 of the patents on this record were granted since Aug 16, 2026
- 8 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 323 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Electrostatic Protection Circuit and Semiconductor Device | 2 in force | to Apr 2041 |
| Semiconductor Device | 2 in force | to Mar 2040 |
| Resin-Encapsulated Semiconductor Device and Method of Manufacturing the Same | 2 in force | to Mar 2038 |
| Power Source Device | 2 in force | to Nov 2037 |
| Electrode for electrocardiogram measurement | 2 in force | to Apr 2036 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,436,239 | Electronic Device Including Charge Pump Circuit In force · High confidence | In force | High confidence | |
| US 7,342,384 | Switching Regulator In force · High confidence | In force | High confidence | |
| US 7,427,891 | Charge Pump-Type Booster Circuit In force · High confidence | In force | High confidence | |
| US 7,564,289 | Voltage Level Shift Circuit and Semiconductor Integrated Circuit In force · High confidence | In force | High confidence | |
| US 7,479,821 | Cascode Circuit and Semiconductor Device In force · High confidence | In force | High confidence | |
| US 7,511,464 | Voltage Regulator In force · High confidence | In force | High confidence | |
| US 7,911,259 | Voltage Switching Circuit In force · High confidence | In force | High confidence | |
| US 7,692,456 | Semiconductor Integrated Circuit Capable of Directly Coupling Low-Voltage Signals with High-Voltage Signals In force · High confidence | In force | High confidence | |
| US 7,973,573 | Semiconductor Integrated Circuit Device In force · High confidence | In force | High confidence | |
| US 7,459,906 | Semiconductor Magnetic Sensor In force · High confidence | In force | High confidence |
Also on record, not counted in the 330: 8 patents in force now held by others · 786 patents ended · 60 applications pending · 36 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.