Seven patents currently held, every record listed here
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
2 more records may belong here and await a decision; they are not counted.
The next term ends in Jan 2039. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jan 2039
Next term end
4
Patent families
When these terms end
Each bar runs from grant to computed term end. 2021 to 2040.20252029203320372040
Every computed term in this portfolio is shown above.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 patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Dec 2039 · High confidence
Also notable
Ends Jan 2039 · High confidence
Also notable
Ends Jan 2039 · High confidence
Liquid Rocket Engine Tap-Off Power Source
US 11,008,977
The earliest of the three still in force, granted 2021 and renewed since. Its term ends first, in 2039.
Method or Manufacturing a Liquid Rocket Engine Thruster Body
US 11,746,729
The newest of the three, granted 2023. It anchors the portfolio to 2039, later than anything else here.
Liquid Rocket Engine Cross Impinged Propellant Injection
US 11,333,104
Granted 2022. Computed term ends 2039.
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 Liquid Rocket Engine Tap-Off Power Source (US 11,692,515) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
- 1 fee due Mar 5, 2027The maintenance fee for Method or Manufacturing a Liquid Rocket Engine Thruster Body (US 11,746,729) comes due Mar 5, 2027. Unpaid by Sep 7, 2027, it lapses early.
- 1 fee due Jun 19, 2027The maintenance fee for Liquid Rocket Engine Booster Engine with Combustion Gas Fuel Source (US 11,846,251) comes due Jun 19, 2027. Unpaid by Dec 20, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 2 largest of its 4 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Liquid Rocket Engine Tap-Off Power Source | 3 in force | to Dec 2039 |
| Liquid Rocket Engine Cooling Channels | 2 in force | to Mar 2039 |
Patents held now
Soonest term end first.
Showing 1 to 7 of 7
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,333,104 | Liquid Rocket Engine Cross Impinged Propellant Injection In force · High confidence | In force | High confidence | |
| US 11,746,729 | Method or Manufacturing a Liquid Rocket Engine Thruster Body In force · High confidence | In force | High confidence | |
| US 11,391,247 | Liquid Rocket Engine Cooling Channels In force · High confidence | In force | High confidence | |
| US 11,384,713 | Liquid Rocket Engine Tap-Off Power Source In force · High confidence | In force | High confidence | |
| US 11,692,515 | Liquid Rocket Engine Tap-Off Power Source In force · High confidence | In force | High confidence | |
| US 11,008,977 | Liquid Rocket Engine Tap-Off Power Source In force · High confidence | In force | High confidence | |
| US 11,846,251 | Liquid Rocket Engine Booster Engine with Combustion Gas Fuel Source In force · High confidence | In force | High confidence |
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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.