Infleqtion Quantum, LLC

19 patents currently held · Updated Nov 15, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Sep 2039

Next term end

When these terms end

5 yrs10 yrs20 yrs

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 Feb 22, 2027
The maintenance fee for Frequency Modulation Spectroscopy with Localized Fluorescence (US 11,733,655) comes due Feb 22, 2027. Unpaid by Aug 23, 2027, it lapses early.
1 fee due Mar 12, 2027
The maintenance fee for Atomic Clock with Atom-Trap Enhanced Oscillator Regulation (US 11,754,979) comes due Mar 12, 2027. Unpaid by Sep 13, 2027, it lapses early.
1 fee due Jun 12, 2027
The maintenance fee for Radio-Frequency Receiver Pumped to High-Azimuthal Rydberg States (US 11,843,420) comes due Jun 12, 2027. Unpaid by Dec 13, 2027, it lapses early.
1 fee due Jul 23, 2027
The maintenance fee for Fluorescence Detection with Optical-Trap-Enhanced Spectral Filtering (US 11,880,171) comes due Jul 23, 2027. Unpaid by Jan 24, 2028, it lapses early.
1 fee due Aug 27, 2027
The maintenance fee for Multi-Quantum-Reference Laser Frequency Stabilization (US 11,916,350) comes due Aug 27, 2027. Unpaid by Feb 28, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted since Aug 17, 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 11,415,614	Rydberg-Particle-Based 3D Microwave Sensor In force Term ends Sep 19, 2039 · High confidence	In force	Term ends Sep 19, 2039	High confidence
US 11,630,143	Microwave Sensor Using Autler-Townes Splitting In force Term ends Sep 19, 2039 · Medium confidence	In force	Term ends Sep 19, 2039	Medium confidence
US 12,105,130	Microwave Sensor Using Autler-Townes Splitting In force Term ends Sep 19, 2039 · High confidence	In force	Term ends Sep 19, 2039	High confidence
US 11,002,777	Microwave Sensor Using Rydberg Particles In force Term ends Oct 20, 2039 · High confidence	In force	Term ends Oct 20, 2039	High confidence
US 12,504,495	Rydberg-Molecule-Based Microwave Direction Finding In force Term ends Sep 15, 2040 · High confidence	In force	Term ends Sep 15, 2040	High confidence
US 11,733,655	Frequency Modulation Spectroscopy with Localized Fluorescence In force Term ends Mar 16, 2042 · High confidence	In force	Term ends Mar 16, 2042	High confidence
US 11,754,979	Atomic Clock with Atom-Trap Enhanced Oscillator Regulation In force Term ends Mar 16, 2042 · High confidence	In force	Term ends Mar 16, 2042	High confidence
US 11,880,171	Fluorescence Detection with Optical-Trap-Enhanced Spectral Filtering In force Term ends Mar 16, 2042 · High confidence	In force	Term ends Mar 16, 2042	High confidence
US 12,298,721	Atomic Clock with Enhanced Oscillator Regulation In force Term ends Mar 16, 2042 · High confidence	In force	Term ends Mar 16, 2042	High confidence
US 12,105,129	Wideband Tunable Rydberg Microwave Detector In force Term ends Apr 30, 2042 · High confidence	In force	Term ends Apr 30, 2042	High confidence

10 of 19 patents shown.

Pro members see all 19.

Pro members: see all 19 patents

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.

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