3,137 patents currently held
114 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.
3 more records may belong here and await a decision; they are 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.
460
Ending by 2030
Nov 2026
Next term end
2,297
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 2029 · High confidence
Also notable
Ends Sep 2033 · High confidence
Also notable
Ends Oct 2035 · High confidence
Organic Electroluminescent Device Having an Electrically Insulating Charge Generation Layer
US 8,080,934
Cited by 228 later US patents, top 5% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
Power Module Semiconductor Device and Inverter Equipment, and Fabrication Method of the Power Module Semiconductor Device, and Metallic Mold
US 9,960,103
Cited by 43 later US patents, top 10% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.
Switching Device and Electronic Circuit
US 10,263,612
Cited by 25 later US patents, top 10% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2035.
Formerly held, still cited
Notable
Ends Dec 2031 · High confidence
Cited by 86 later US patents, top 10% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
now held by Finewell Co., Ltd.
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.
- 14 fees due Nov 14 to 30, 2026 · next Nov 14
- 52 fees due Dec 2 to 30, 2026 · next Dec 2
- 53 fees due Jan 2 to 30, 2027 · next Jan 2
- 63 fees due Feb 1 to 28, 2027 · next Feb 1
- 51 fees due Mar 1 to 29, 2027 · next Mar 1
- 49 fees due Apr 1 to 30, 2027 · next Apr 1
- 53 fees due May 3 to 28, 2027 · next May 3
- 54 fees due Jun 1 to 30, 2027 · next Jun 1
- 54 fees due Jul 2 to 30, 2027 · next Jul 2
- 65 fees due Aug 2 to 27, 2027 · next Aug 2
- 67 fees due Sep 1 to 30, 2027 · next Sep 1
- 55 fees due Oct 2 to 30, 2027 · next Oct 2
- 20 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- Sep 15Assignment recorded on 1 record: Rohm Co., Ltd. to Cosel Co., Ltd. Recorded Sep 15, 2026, executed Sep 10, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76017, frame 451.
- 106 of the patents on this record were granted since Aug 16, 2026
- 59 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 2,297 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Semiconductor Device and Method of Manufacturing the Same (2012) | 13 in force | to Nov 2030 |
| Semiconductor Device and Method of Manufacturing the Same (2012) | 11 in force | to Oct 2032 |
| Semiconductor Device (2010) | 11 in force | to Mar 2031 |
| Semiconductor Device (2014) | 10 in force | to Aug 2032 |
| Electronic Circuit Comprising Unipolar and Bipolar Devices | 10 in force | to May 2031 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,499,253 | Semiconductor Integrated-Circuit Unit with Temperature Protective Circuit In force · High confidence | In force | High confidence | |
| US 7,430,909 | Tri-Axis Accelerometer In force · High confidence | In force | High confidence | |
| US 7,714,549 | Switching Regulator Control Circuit, Switching Regulator Using the Circuit, and Switching Signal Generating Apparatus In force · High confidence | In force | High confidence | |
| US D671,508 | Light Emitting Diode Module In force · High confidence | In force | High confidence | |
| US D671,509 | Light Emitting Diode Module In force · High confidence | In force | High confidence | |
| US 7,616,223 | Thermal Printhead In force · High confidence | In force | High confidence | |
| US 8,164,201 | Semiconductor Device with Front and Back Side Resin Layers Having Different Thermal Expansion Coefficient and Elasticity Modulus In force · High confidence | In force | High confidence | |
| US 7,416,963 | Manufacturing Method of Semiconductor Device In force (reinstated) · High confidence | In force (reinstated) | High confidence | |
| US 7,411,265 | Photodiode and Phototransistor In force · High confidence | In force | High confidence | |
| US 7,750,617 | Switching Regulator and Electronic Device Therewith In force · High confidence | In force | High confidence |
Also on record, not counted in the 3,137: 114 patents in force now held by others · 1,719 patents ended · 1,048 applications pending · 936 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.