69 patents currently held
1,713 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.
8 more records may belong here and await a decision; they are not counted.
The next term ends in Aug 2029. from the record
Of the 1,713 now held by other companies, 1,660 name Safran Aircraft Engines as their current owner, and 53 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
2
Ending by 2030
Aug 2029
Next term end
68
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 Jul 2036 · High confidence
Also notable
Ends Mar 2035 · High confidence
Also notable
Ends Jun 2034 · High confidence
Turbine Ring Assembly Made from Ceramic Matrix Composite Material
US 10,590,803
The most cited patent in this portfolio, cited by 60 later US patents, top 5% of utility patents granted in 2020 in our data. Protection runs to 2036.
A Method for the Additive Manufacturing of a Part by Selective Melting or Selective Sintering of Optimized-Compactness Powder Beds Using a High Energy Beam
US 11,148,204
Cited by 42 later US patents, top 5% of utility patents granted in 2021 in our data. Protection runs to 2035.
Turbine Engine Blade or Vane Made of Composite Material, Turbine Nozzle or Compressor Stator Incorporating Such Vanes and Method of Fabricating Same
US 9,506,355
Cited by 31 later US patents, top 25% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
Formerly held, still cited
Notable
Ends Jul 2034 · High confidence
Cited by 33 later US patents, top 10% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
now held by Safran Aircraft Engines
Also notable
Ends no later than Oct 2031 · Medium confidence
The largest patent family in this portfolio, 20 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2031. 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.
now held by Safran Nacelles
Also notable
Ends Feb 2027 · High confidence
The largest patent family in this portfolio, 22 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2027.
now held by Safran Aircraft Engines
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 28, 2026The maintenance fee for Peeling Test Coupon (US 10,302,550) comes due Nov 28, 2026. Unpaid by May 28, 2027, it lapses early.
- 1 fee due Jan 16, 2027The maintenance fee for Assembly for an Engine Which Can Define a Blade Break-Off Test Device (US 10,352,326) comes due Jan 16, 2027. Unpaid by Jul 16, 2027, it lapses early.
- 3 fees due Feb 6 to 20, 2027 · next Feb 6
- 4 fees due Apr 8 to 29, 2027 · next Apr 8
- 3 fees due May 17 to 26, 2027 · next May 17
- 1 fee due Jun 30, 2027The maintenance fee for Blade Comprising Lands with a Stiffener (US 10,519,776) comes due Jun 30, 2027. Unpaid by Jan 3, 2028, it lapses early.
- 2 fees due Jul 7 to 21, 2027 · next Jul 7
- 1 fee due Aug 4, 2027The maintenance fee for Rotor Vane with Active Clearance Control, Rotary Assembly and Operating Method Thereof (US 10,550,712) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
- 3 fees due Sep 17 to 30, 2027 · next Sep 17
- 2 fees due Oct 14 to 28, 2027 · next Oct 14
Recent changes
- 21 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 68 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,545,762 | Composite Coupling with a Machining Portion In force · High confidence | In force | High confidence | |
| US 8,602,726 | Sectored Distributor for Turbomachine In force · High confidence | In force | High confidence | |
| US 8,866,471 | A Probe for Inspecting the Surface of a Circumferential Slot in a Turbojet Disk by Means of Eddy Currents In force · High confidence | In force | High confidence | |
| US 9,157,330 | Layout of a Blisk In force · High confidence | In force | High confidence | |
| US 9,194,240 | Vibration Damper Comprising a Peg Between Outer Platforms of Adjacent Composite-Material Blades of a Turbine Engine Rotor Wheel In force · High confidence | In force | High confidence | |
| US 9,188,014 | Vibration Damper Comprising a Strip and Jackets Between Outer Platforms of Adjacent Composite-Material Blades of a Turbine Engine Rotor Wheel In force · High confidence | In force | High confidence | |
| US 9,518,472 | Turbine Engine Stator Wheel and a Turbine or a Compressor Including Such a Stator Wheel In force · High confidence | In force | High confidence | |
| US 10,967,460 | Method for Manufacturing a Part by Melting Powder, the Powder Particles Reaching the Bath in a Cold State held by Safran Aircraft Engines In force · High confidence | In force | High confidence | |
| US 9,631,495 | Cooling for the Retaining Dovetail of a Turbomachine Blade In force · High confidence | In force | High confidence | |
| US 9,605,543 | Turbine Engine Blade Made of Composite Material, and a Method of Fabricating It In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 69: 1,713 patents in force now held by others · 483 patents ended · 241 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.