Malta Inc.
8 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.
Recorded under 2 name spellings.
0
Ending by 2030
Mar 2031
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 Nov 23, 2026The maintenance fee for Modular Thermal Storage (US 11,655,759) comes due Nov 23, 2026. Unpaid by May 24, 2027, it lapses early.
- 2 fees due Mar 12 to 19, 2027 · next Mar 12
- 2 fees due Apr 8 to 29, 2027 · next Apr 8
- 3 fees due Jun 12 to 26, 2027 · next Jun 12
- 1 fee due Jul 30, 2027The maintenance fee for Pumped Heat Energy Storage System with Electric Heating Integration (US 11,885,244) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
- 1 fee due Sep 12, 2027The maintenance fee for Pump Control of Closed Cycle Power Generation System (US 11,927,130) comes due Sep 12, 2027. Unpaid by Mar 13, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 5 terms have ended 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 11,761,336 | Adiabatic salt energy storage In force · From the USPTO record | In force | From the USPTO record | |
| US 10,907,513 | Adiabatic Salt Energy Storage In force · High confidence | In force | High confidence | |
| US 11,754,319 | Pumped Thermal Storage Cycles with Turbomachine Speed Control In force · High confidence | In force | High confidence | |
| US 10,458,284 | Variable Pressure Inventory Control of Closed Cycle System with a High Pressure Tank and an Intermediate Pressure Tank In force · High confidence | In force | High confidence | |
| US 10,907,510 | Storage of Excess Heat in Cold Side of Heat Engine In force · High confidence | In force | High confidence | |
| US 10,920,667 | Pump Control of Closed Cycle Power Generation System In force · High confidence | In force | High confidence | |
| US 10,920,674 | Variable Pressure Inventory Control of Closed Cycle System with a High Pressure Tank and an Intermediate Pressure Tank In force · High confidence | In force | High confidence | |
| US 11,512,613 | Storage of excess heat in cold side of heat engine In force · From the USPTO record | In force | From the USPTO record | |
| US 11,591,956 | Baffled Thermoclines in Thermodynamic Generation Cycle Systems In force · Medium confidence | In force | Medium confidence | |
| US 11,927,130 | Pump Control of Closed Cycle Power Generation System In force · High confidence | In force | High confidence |
Also on record, not counted in the 36: 8 patents in force now held by others · 14 lapsed for an unpaid fee. List them
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.
16 abandoned · 7 no status recorded