The Patent Finder

Astra Navigation, Inc.

13 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Jun 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 20, 2026
    The maintenance fee for Correlating Overlapping Magnetic Measurement Data from Multiple Magnetic Navigation Devices and Updating a Geomagnetic Map with that Data (US 11,680,802) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
  • 2 fees due Feb 8 to 15, 2027 · next Feb 8

Which patents, and when each one lapses · Pro

Recent changes

  • 3 of the patents on this record were granted since Aug 16, 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 11,428,532Generating a Geomagnetic Map
In force
 · Medium confidence
In forceMedium confidence
US 11,680,802Correlating Overlapping Magnetic Measurement Data from Multiple Magnetic Navigation Devices and Updating a Geomagnetic Map with that Data
In force
 · High confidence
In forceHigh confidence
US 11,725,946Operating Modes of Magnetic Navigation Devices
In force
 · Medium confidence
In forceMedium confidence
US 12,560,435Generating a Geomagnetic Map
In force
 · High confidence
In forceHigh confidence
US 11,719,716Measuring Distance Traversed or Speed
In force
 · High confidence
In forceHigh confidence
US 12,498,245Embedding a Magnetic Map into an Image File
In force
 · High confidence
In forceHigh confidence
US 12,625,201Controlling Motion with Magnetometers
In force
 · High confidence
In forceHigh confidence
US 12,474,168Using a Magnetic Recording for Authentication
In force
 · High confidence
In forceHigh confidence
US 12,618,677Using Magnetic-Sensor Data to Correct for INS Drift
In force
 · High confidence
In forceHigh confidence
US 12,723,875Authenticating a Device Using Geofencing Data
In force
 · High confidence
In forceHigh confidence
10 of 13 patents shown.
Pro members see all 13.
Pro members: see all 13 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.

8 pending · 1 abandoned · 1 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited