2,979 patents currently held
15 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.
9 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.
155
Ending by 2030
Nov 2026
Next term end
2,901
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 Nov 2037 · High confidence
Also notable
Ends Aug 2037 · High confidence
Also notable
Ends Jul 2032 · High confidence
Electric Wire Conductor, Covered Electric Wire, and Wiring Harness
US 10,658,092
Cited by 16 later US patents, top 25% of utility patents granted in 2020 in our data. Protection runs to 2037.
Aluminum Alloy Wire, Aluminum Alloy Strand Wire, Covered Electrical Wire, and Terminal-Equipped Electrical Wire
US 10,522,263
Cited by 10 later US patents, top 25% of utility patents granted in 2019 in our data. Protection runs to 2037.
Aluminum Alloy Wire
US 9,422,612
Cited by 32 later US patents, top 25% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.
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.
- 8 fees due Nov 21 to 30, 2026 · next Nov 21
- 36 fees due Dec 2 to 25, 2026 · next Dec 2
- 61 fees due Jan 2 to 30, 2027 · next Jan 2
- 54 fees due Feb 1 to 28, 2027 · next Feb 1
- 65 fees due Mar 1 to 29, 2027 · next Mar 1
- 64 fees due Apr 1 to 30, 2027 · next Apr 1
- 47 fees due May 5 to 28, 2027 · next May 5
- 64 fees due Jun 1 to 30, 2027 · next Jun 1
- 56 fees due Jul 2 to 30, 2027 · next Jul 2
- 50 fees due Aug 4 to 27, 2027 · next Aug 4
- 83 fees due Sep 3 to 30, 2027 · next Sep 3
- 60 fees due Oct 2 to 30, 2027 · next Oct 2
- 37 fees due Nov 3 to 14, 2027 · next Nov 3
Recent changes
- Oct 27Assignment recorded on 1 record: Hasegawa, Takahiro and 1 other to Sumitomo Wiring Systems, Ltd. Recorded Oct 27, 2026, executed Oct 21, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76532, frame 719.
- Oct 27Assignment recorded on 1 record: Hasegawa, Takahiro and 1 other to Sumitomo Wiring Systems, Ltd. Recorded Oct 27, 2026, executed Oct 21, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76532, frame 740.
- 79 of the patents on this record were granted since Aug 17, 2026
- 43 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 2,901 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Aluminum Alloy Wire, Aluminum Alloy Strand Wire, Covered Electrical Wire, and Terminal-Equipped Electrical Wire | 5 in force | to Feb 2038 |
| Cable Harness with Sheath Housing Cables | 5 in force | to Dec 2035 |
| Grommet | 4 in force | to Nov 2034 |
| Production Method for Insulated Electric Wire and Insulated Electric Wire | 3 in force | to Jul 2038 |
| Electric Wire Conductor, Covered Electric Wire, and Wiring Harness | 3 in force | to Nov 2037 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,338,297 | Connector Mounting Construction and Method In force · High confidence | In force | High confidence | |
| US 7,445,481 | Connector In force · High confidence | In force | High confidence | |
| US 7,731,548 | Coaxial Connector and a Structure for Attaching the Coaxial Connector to a Connector Housing held by AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd. and Sumitomo Electric Industries, Ltd. In force · High confidence | In force | High confidence | |
| US 7,306,486 | Connector In force · High confidence | In force | High confidence | |
| US 7,377,824 | Connector and Connector Assembly In force · High confidence | In force | High confidence | |
| US 7,294,015 | Connector and a Method for Controlling the Assembly Thereof In force · High confidence | In force | High confidence | |
| US 7,347,747 | A Terminal Fitting with a Resilient Reinforcing Piece In force · High confidence | In force | High confidence | |
| US 7,431,596 | Connector Assembly with Mold Removal Hole In force · High confidence | In force | High confidence | |
| US 7,514,629 | Electrical Connection Box held by AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd. and Sumitomo Electric Industries, Ltd. In force · High confidence | In force | High confidence | |
| US 7,347,748 | Terminal Fitting and Connector Provided Therewith In force · High confidence | In force | High confidence |
Also on record, not counted in the 2,979: 15 patents in force now held by others · 2,251 patents ended · 1,212 applications pending · 1,051 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.