384 patents currently held
98 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 Dec 2026. from the record
Of the 98 now held by other companies, 73 name Steeretail Co. Ltd. as their current owner, and 25 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
94
Ending by 2030
Dec 2026
Next term end
372
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 Jan 2036 · High confidence
Also notable
Ends Apr 2040 · High confidence
Also notable
Ends Jul 2029 · High confidence
Cooling System and Electronic Equipment
US 10,408,545
The most cited patent in this portfolio, cited by 68 later US patents, top 5% of utility patents granted in 2019 in our data. Protection runs to 2036.
Voice Input/Output Apparatus, Hearing Aid, Voice Input/Output Method, and Voice Input/Output Program
US 11,743,662
Cited by 7 later US patents, top 10% of utility patents granted in 2023 in our data. Protection runs to 2040.
Semiconductor Device
US 8,338,940
Cited by 37 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
Formerly held, still cited
Notable
Ends Jun 2037 · High confidence
The newest of the three, granted 2020. It anchors the portfolio to 2037, later than anything else here.
now held by Steeretail Co., Ltd.
Also notable
Ends Feb 2036 · High confidence
Granted 2019. Computed term ends 2036.
now held by Steeretail 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.
- 2 fees due Nov 28 to 30, 2026 · next Nov 28
- 6 fees due Dec 2 to 27, 2026 · next Dec 2
- 2 fees due Jan 7 to 16, 2027 · next Jan 7
- 9 fees due Feb 6 to 28, 2027 · next Feb 6
- 9 fees due Mar 3 to 29, 2027 · next Mar 3
- 7 fees due Apr 3 to 24, 2027 · next Apr 3
- 2 fees due May 5 to 12, 2027 · next May 5
- 4 fees due Jun 5 to 26, 2027 · next Jun 5
- 6 fees due Jul 2 to 23, 2027 · next Jul 2
- 7 fees due Aug 2 to 25, 2027 · next Aug 2
- 6 fees due Sep 5 to 30, 2027 · next Sep 5
- 4 fees due Oct 2 to 30, 2027 · next Oct 2
- 3 fees due Nov 5 to 7, 2027 · next Nov 5
Recent changes
- 12 of the patents on this record were granted since Aug 16, 2026
- 18 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 372 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,660,597 | Internet Telephone System, Call Connection Controller, Terminal Association Method Used Therein and Its Program In force · High confidence | In force | High confidence | |
| US 7,547,153 | Cutter Apparatus and Printer Provided with Cutter Apparatus In force · High confidence | In force | High confidence | |
| US 7,660,293 | Network, Private Branch Exchange, and Multi Protocol Communication Terminal Control Method for Use in the Exchange In force · High confidence | In force | High confidence | |
| US D676,016 | Portion of a Telephone In force · High confidence | In force | High confidence | |
| US D676,411 | Telephone In force · High confidence | In force | High confidence | |
| US 7,505,612 | Image Construction Method, Fingerprint Image Construction Apparatus, and Program In force · High confidence | In force | High confidence | |
| US D680,121 | Information Terminal Cradle In force · High confidence | In force | High confidence | |
| US 7,760,922 | Fingerprint Reading Method for a Sweep-Type Fingerprint Sensor, Fingerprint Reading System and Program In force · High confidence | In force | High confidence | |
| US 7,539,299 | Office-Line Trunk Circuit Operating on Ground-Start and Loop-Start Modes, Method of Controlling Same, and Control Program for Same In force · High confidence | In force | High confidence | |
| US 7,643,479 | Communication Transfer Apparatus and Communication Transfer Method In force · High confidence | In force | High confidence |
Also on record, not counted in the 384: 98 patents in force now held by others · 304 patents ended · 65 applications pending · 103 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.