24 patents currently held
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Apr 2035. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Apr 2035
Next term end
14
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 Jun 2035 · High confidence
Also notable
Ends Aug 2042 · High confidence
Also notable
Ends Dec 2042 · High confidence
Systems, Apparatus, and Methods of Charging Electric Vehicles
US 9,592,742
The most cited patent in this portfolio, cited by 56 later US patents, top 10% of utility patents granted in 2017 in our data. Protection runs to 2035.
Charging EV Battery Using Parallel Buck and Boost Converters
US 11,642,981
The newest of the three, granted 2023. It anchors the portfolio to 2042, later than anything else here.
Resilient Charging Station
US 11,807,123
The newest of the three, granted 2023. It anchors the portfolio to 2042, later than anything else here.
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 Dec 6 to 27, 2026 · next Dec 6
- 1 fee due Feb 6, 2027The maintenance fee for Systems, Apparatus, and Methods for Electric Power (US 10,369,890) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
- 2 fees due Mar 3 to 5, 2027 · next Mar 3
- 1 fee due Apr 3, 2027The maintenance fee for Energy Management for Multiple Charging Stations (US 11,772,509) comes due Apr 3, 2027. Unpaid by Oct 4, 2027, it lapses early.
- 1 fee due May 7, 2027The maintenance fee for Resilient Charging Station (US 11,807,123) comes due May 7, 2027. Unpaid by Nov 8, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 14 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Systems, Apparatus, and Methods of Charging Electric Vehicles | 4 in force | to Jun 2035 |
| Resilient Charging Station (2022) | 2 in force | to Dec 2042 |
| Resilient Charging Station (2022) | 2 in force | to Dec 2042 |
| Energy Management for Multiple Charging Stations | 2 in force | to Dec 2042 |
| Energy Management for Connected Charging Stations with Bidirectionality | 2 in force | to Dec 2042 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,369,890 | Systems, Apparatus, and Methods for Electric Power In force · High confidence | In force | High confidence | |
| US 10,399,461 | Methods for Electric Power In force · High confidence | In force | High confidence | |
| US 11,511,635 | Electric Power System In force · High confidence | In force | High confidence | |
| US 9,592,742 | Systems, Apparatus, and Methods of Charging Electric Vehicles In force · High confidence | In force | High confidence | |
| US D1,060,223 | Electric Vehicle Charging Station In force · High confidence | In force | High confidence | |
| US D1,065,071 | Electric Vehicle Charging Station In force · High confidence | In force | High confidence | |
| US 11,456,605 | Autonomous Mobile Power Supply with Task or User Tracking In force · High confidence | In force | High confidence | |
| US 12,071,031 | High-Availability Low-Impact Vehicle Charger In force · High confidence | In force | High confidence | |
| US 11,642,981 | Charging EV Battery Using Parallel Buck and Boost Converters In force · High confidence | In force | High confidence | |
| US 12,139,039 | Charging EV Battery Using Parallel Buck and Boost Converters In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 24: 1 patent in force now held by others · 16 applications pending · 1 application 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.