Id Quantique

10 patents currently held · Updated Nov 14, 2026

3 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.

Ending by 2030

Aug 2033

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 13, 2027
The maintenance fee for Device and Method for Supplying Key to Plurality of Devices in Quantum Key Distribution System (US 10,382,198) comes due Feb 13, 2027. Unpaid by Aug 13, 2027, it lapses early.
1 fee due Jun 30, 2027
The maintenance fee for Method and Device for Synchronizing Quantum Data Start Points in Quantum Key Distribution System (US 10,523,429) comes due Jun 30, 2027. Unpaid by Jan 3, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 9,464,937	Method and Device for Differential Optical Phase Modulation in Quantum Key Distribution System In force Term ends Aug 21, 2033 · High confidence	In force	Term ends Aug 21, 2033	High confidence
US 9,535,661	Method and Device for Removing Biasing Due to Signal Source During Random Number Generation In force Term ends Aug 21, 2033 · High confidence	In force	Term ends Aug 21, 2033	High confidence
US 9,588,737	Random Number Generating Method and Apparatus Using Light Source and Single Photon Detector In force Term ends Aug 30, 2033 · High confidence	In force	Term ends Aug 30, 2033	High confidence
US 10,103,881	Permutation Method for Correcting Bit Error in Quantum Key Distribution Protocol In force Term ends Mar 3, 2034 · High confidence	In force	Term ends Mar 3, 2034	High confidence
US 9,882,716	Method and Apparatus for Generating and Processing Quantum Signal in Regular Frame Unit for Quantum Encryption Key Distribution In force Term ends Apr 6, 2034 · High confidence	In force	Term ends Apr 6, 2034	High confidence
US 9,876,639	Method for Processing Double Click Event for Securing Safety in Quantum Key Distribution System In force Term ends Dec 20, 2034 · High confidence	In force	Term ends Dec 20, 2034	High confidence
US 9,847,876	Method and Apparatus for Generating Raw Key Using Double Buffering Scheme in Implementing Quantum Key Distribution Protocol In force Term ends Feb 1, 2035 · High confidence	In force	Term ends Feb 1, 2035	High confidence
US 9,772,820	Method and device for optics based quantum random number generation In force Term ends Nov 8, 2035 · From the USPTO record	In force	Term ends Nov 8, 2035	From the USPTO record
US 10,382,198	Device and Method for Supplying Key to Plurality of Devices in Quantum Key Distribution System In force Term ends Mar 8, 2036 · High confidence	In force	Term ends Mar 8, 2036	High confidence
US 10,523,429	Method and Device for Synchronizing Quantum Data Start Points in Quantum Key Distribution System In force Term ends Jun 29, 2036 · High confidence	In force	Term ends Jun 29, 2036	High confidence

Also on record, not counted in the 10: 3 patents in force now held by others · 1 lapsed for an unpaid fee · 1 ended at full term. 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.

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Published applications

Every application published under this name has become a patent.