1. U.S. Patent No. 12,560,435, Generating a Geomagnetic Map

2. Japanese Patent No. 7794763, Operating Modes of Magnetic Navigation Devices

3. U.S. Patent No. 12,498,245, Embedding a Magnetic Map in an Image File

4. U.S. Patent No. 12,474,168, Using a Magnetic Recording for Authentication

5. Japanese Patent No. 7773488, Generating a Geomagnetic Map

6. Japanese Patent No. 7710468, Correlating Overlapping Magnetic Measurement Data from Multiple Magnetic Navigation Devices and Updating a Geomagnetic Map with that Data

7. U.S. Patent No. 11,725,946, Operating Modes of Magnetic Navigation Devices

8. U.S. Patent No. 11,719,716, Measuring Distance Traversed or Speed

9. U.S. Patent No. 11,680,802, Correlating Overlapping Magnetic Measurement Data from Multiple Magnetic

10. Navigation Devices and Updating a Geomagnetic Map with that Data 
    U.S. Patent No. 11,428,532, Generating a Geomagnetic Map

Other U.S. and foreign patents pending.