17 patents currently held
3 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 2038. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Dec 2038
Next term end
16
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 Apr 2039 · High confidence
Also notable
Ends no later than Jan 2039 · Medium confidence
Also notable
Ends Dec 2038 · High confidence
Anode-Free Solid-State Battery Cells with Anti-Dendrite and Interface Adhesion Controlled Functional Layers
US 11,024,877
The earliest of the three still in force, granted 2021 and renewed since. Its term ends first, in 2039.
Systems and Methods to Control Lithium Plating
US 11,462,804
The newest of the three, granted 2022. It anchors the portfolio to 2039, later than anything else here. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.
Hydraulic Isotropically-Pressurized Battery Modules
US 11,108,075
The earliest of the three still in force, granted 2021 and renewed since. Its term ends first, in 2038.
Formerly held, still cited
Notable
Ends Nov 2039 · High confidence
The earliest of the three still in force, granted 2021 and renewed since. Its term ends first, in 2039.
now held by SF Motors, Inc.
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.
- 1 fee due Jan 4, 2027The maintenance fee for Isostatic Press Devices and Processes for Cylindrical Solid-State Batteries (US 11,695,149) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
- 1 fee due Mar 3, 2027The maintenance fee for Hydraulic Isostatic Press Processes for Solid-State Batteries (US 10,403,925) comes due Mar 3, 2027. Unpaid by Sep 3, 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 16 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Layered Pressure Homogenizing Soft Medium for Li-Ion Rechargeable Batteries | 2 in force | to May 2041 |
| Battery and Method for Producing Same (2022) | 1 in force | to Mar 2042 |
| Battery and Method for Producing Same (2022) | 1 in force | to Nov 2041 |
| Deterioration State Estimation Device, Deterioration State Estimation Method, Program, and Power Supply Device for Anode-Free Lithium Battery Equipped with Same | 1 in force | to Jul 2041 |
| Interfacial Bonding Layer for an Anode-Free Solid-State-Battery | 1 in force | to May 2041 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,403,925 | Hydraulic Isostatic Press Processes for Solid-State Batteries In force · High confidence | In force | High confidence | |
| US 11,108,075 | Hydraulic Isotropically-Pressurized Battery Modules In force · High confidence | In force | High confidence | |
| US 11,462,804 | Systems and Methods to Control Lithium Plating In force · Medium confidence | In force | Medium confidence | |
| US 11,024,877 | Anode-Free Solid-State Battery Cells with Anti-Dendrite and Interface Adhesion Controlled Functional Layers In force · High confidence | In force | High confidence | |
| US 11,515,539 | Volume-Expansion Accommodable Anode-Free Solid-State Battery In force · High confidence | In force | High confidence | |
| US 10,992,004 | Electric Vehicle Solid State Battery Cell In force · High confidence | In force | High confidence | |
| US 11,695,149 | Isostatic Press Devices and Processes for Cylindrical Solid-State Batteries In force · High confidence | In force | High confidence | |
| US 11,271,253 | Cylindrical Anode-Free Solid State Battery Having a Pseudo-Solid Lithium Gel Layer In force · High confidence | In force | High confidence | |
| US 11,522,212 | Layered Pressure Homogenizing Soft Medium for Li-Ion Rechargeable Batteries In force · High confidence | In force | High confidence | |
| US 11,335,943 | Solid State Battery Variable Pressure Optimization System In force · High confidence | In force | High confidence |
Also on record, not counted in the 17: 3 patents in force now held by others · 42 applications pending · 8 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.