Ampcera Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Sep 2038
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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 Mar 26, 2027The maintenance fee for Systems and Methods for Selectively Extracting Alkaline Metals from Metal-Rich Solutions Using Solid State Ionic Conductive Electrolyte Membrane (US 11,769,906) comes due Mar 26, 2027. Unpaid by Sep 27, 2027, it lapses early.
- 1 fee due May 21, 2027The maintenance fee for Methods for manufacturing a solid state ionic conductive membrane on a macro porous support scaffold (US 11,819,806) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.
- 1 fee due Jul 23, 2027The maintenance fee for Dendrite suppressing solid electrolyte structures and related methods and systems (US 11,881,553) comes due Jul 23, 2027. Unpaid by Jan 24, 2028, it lapses early.
- 1 fee due Sep 19, 2027The maintenance fee for Systems and methods for heating electrochemical systems (US 11,936,028) comes due Sep 19, 2027. Unpaid by Mar 20, 2028, it lapses early.
Recent changes
- 3 of the patents on this record were granted since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 12,125,973 | Solid State Ionic Conductive Electrolyte Membrane and System for Selectively Extracting Alkaline Metals In force · High confidence | In force | High confidence | |
| US 11,177,498 | Redox flow batteries, components for redox flow batteries and methods for manufacture thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 11,769,906 | Systems and Methods for Selectively Extracting Alkaline Metals from Metal-Rich Solutions Using Solid State Ionic Conductive Electrolyte Membrane In force · High confidence | In force | High confidence | |
| US 12,057,561 | Systems and methods for induction heating of electrolytes In force · From the USPTO record | In force | From the USPTO record | |
| US 12,272,809 | Battery cell, battery module, battery pack, electric vehicle, and method of heating In force · From the USPTO record | In force | From the USPTO record | |
| US 11,881,553 | Dendrite suppressing solid electrolyte structures and related methods and systems In force · From the USPTO record | In force | From the USPTO record | |
| US 11,600,853 | Systems and Methods for Storing, Transporting, and Handling of Solid-State Electrolytes In force · High confidence | In force | High confidence | |
| US 11,936,028 | Systems and methods for heating electrochemical systems In force · From the USPTO record | In force | From the USPTO record | |
| US 12,469,902 | Systems and methods for heating electrochemical systems In force · From the USPTO record | In force | From the USPTO record | |
| US 12,770,959 | Internally Heatable Battery, Internally Heatable Battery System, Internally Heatable Battery Method, and Electric Vehicle Comprising the Same In force · High confidence | In force | High confidence |
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
3 pending · 1 abandoned · 4 no status recorded