124 patents currently held
7 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 2028. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
3
Ending by 2030
Dec 2028
Next term end
119
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 Feb 2031 · High confidence
Also notable
Ends Feb 2039 · High confidence
Also notable
Ends Nov 2035 · High confidence
Charging Station
US D778,818
The most cited patent in this portfolio, cited by 83 later US patents, top 5% of design patents granted in 2017 in our data. Protection runs to 2031.
System and Method for Electrical Vehicle Charging System
US 10,951,044
Cited by 16 later US patents, top 10% of utility patents granted in 2021 in our data. Protection runs to 2039.
Charger for Electric Vehicles with Distributed Power Converter Arbitration
US 9,908,421
Cited by 19 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.
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 Dec 6 to 25, 2026 · next Dec 6
- 2 fees due Jan 4 to 28, 2027 · next Jan 4
- 2 fees due Feb 8 to 22, 2027 · next Feb 8
- 3 fees due Apr 17 to 30, 2027 · next Apr 17
- 2 fees due May 7 to 14, 2027 · next May 7
- 3 fees due Jun 5 to 30, 2027 · next Jun 5
- 1 fee due Aug 11, 2027The maintenance fee for Multi-Layer Conductors for Noise Reduction in Power Electronics (US 10,559,536) comes due Aug 11, 2027. Unpaid by Feb 11, 2028, it lapses early.
- 3 fees due Sep 5 to 19, 2027 · next Sep 5
- 1 fee due Oct 2, 2027The maintenance fee for Inductive Power Transfer System for Derating a Battery Charging Profile of Electric Vehicle Batteries and Control Method Thereof (US 11,945,317) comes due Oct 2, 2027. Unpaid by Apr 3, 2028, it lapses early.
- 3 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- 9 of the patents on this record were granted since Aug 16, 2026
- 4 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 119 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Charger for Electric Vehicles with Distributed Power Converter Arbitration | 3 in force | to Nov 2035 |
| System and Method for Electrical Vehicle Charging System | 2 in force | to Feb 2039 |
| Charging Station | 2 in force | to Mar 2034 |
| Charging System for Electric Vehicles | 2 in force | to Apr 2033 |
| Power Supply System for Bidirectional Energy Flow | 1 in force | to Feb 2044 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,732,948 | Portable Energy Device In force · High confidence | In force | High confidence | |
| US 8,064,225 | Reactor Arrangement In force · High confidence | In force | High confidence | |
| US 8,749,353 | Wireless Communication Between Two Temporarily Connected Devices In force · High confidence | In force | High confidence | |
| US D778,818 | Charging Station In force · High confidence | In force | High confidence | |
| US 11,801,761 | Charging System for Electric Vehicles In force · Medium confidence | In force | Medium confidence | |
| US 10,454,377 | Resonant Power Converter In force · High confidence | In force | High confidence | |
| US 9,209,638 | Charger for a Battery, Plurality of Coupled Chargers and Method of Operating In force · High confidence | In force | High confidence | |
| US 9,371,008 | System, Devices and Method for Charging a Battery of an Electric Vehicle In force · High confidence | In force | High confidence | |
| US 9,413,178 | Charging Device and Method of Detecting a Connection to Ground In force · High confidence | In force | High confidence | |
| US 9,397,548 | Dc-Dc Converter Systems In force · High confidence | In force | High confidence |
Also on record, not counted in the 124: 7 patents in force now held by others · 9 patents ended · 44 applications pending · 18 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.