ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,869, issued on Aug. 12, was assigned to NUTRIPROBE LLC (Urbandale, Iowa).
"Soil moisture and nutrient sensor system" was invented by Don Van Houweling (Perry, Iowa), Bradley G. Rathje (Bennet, Neb.) and Arthur Henry Pickworth (Humpty Doo, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A soil moisture and fertility sensor system is presented that includes an elongated probe having a plurality of sensor modules positioned along the length of the probe. Each sensor module includes a co-located sensors configured to take a moisture, temperature, and fertility measurements at varying depths of the soil. The probe is configured for wireless comm...