The Patent Finder

Terra Quantum AG

23 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Sep 2041
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 Dec 27, 2026
    The maintenance fee for Techniques for determining a nuclear magnetic resonance relaxation time and/or a nuclear magnetic resonance spectrum of a probe (US 11,686,796) comes due Dec 27, 2026. Unpaid by Jun 28, 2027, it lapses early.
  • 1 fee due Apr 30, 2027
    The maintenance fee for Device with a heterostructure adapted to be applied as a resonator for electrons of an electrical circuit or for a terahertz electromagnetic wave (US 11,803,002) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
  • 1 fee due May 14, 2027
    The maintenance fee for Method and system for quantum key distribution (US 11,818,258) comes due May 14, 2027. Unpaid by Nov 15, 2027, it lapses early.
  • 1 fee due Jul 23, 2027
    The maintenance fee for Method and System for Quantum Key Distribution (US 11,882,212) comes due Jul 23, 2027. Unpaid by Jan 24, 2028, it lapses early.
  • 1 fee due Nov 7, 2027
    The maintenance fee for Method, apparatus and computer program product for determining the component of a magnetic field in a predetermined direction (US 11,977,954) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 3 of the patents on this record were 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.
PatentTitleStatus Expires Confidence
US 11,686,796Techniques for determining a nuclear magnetic resonance relaxation time and/or a nuclear magnetic resonance spectrum of a probe
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,170,724Method, apparatus, computer program and data carrier for determining a shared secret cryptographic key
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,803,002Device with a heterostructure adapted to be applied as a resonator for electrons of an electrical circuit or for a terahertz electromagnetic wave
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,882,212Method and System for Quantum Key Distribution
In force
 · High confidence
In forceHigh confidence
US 11,818,258Method and system for quantum key distribution
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,191,355Field effect transistor with a negative capacitance gate structure
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,977,954Method, apparatus and computer program product for determining the component of a magnetic field in a predetermined direction
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,137,170Method for Determining a Preimage Element of a Cryptographic Hash Function, Computer Program, and Data Processing System
In force
 · High confidence
In forceHigh confidence
US 12,126,710Method for determining a cryptographic key, computer program, and data processing system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,149,615Long-distance quantum key distribution
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 23 patents shown.
Pro members see all 23.
Pro members: see all 23 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.

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 pending · 4 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited