ALEXANDRIA, Va., June 2 -- United States Patent no. 12,645,006, issued on June 2, was assigned to GEOSIGHT INC. (Bowmanville, Canada) and KEY LOGIC INC. (Sudbury, Canada).

"Portable bore hole measurement device" was invented by Dean Lupini (Sudbury, Canada) and Shawn W. Romkey (Oshawa, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A portable device for measuring characteristics of a bore hole includes a base station that includes one or more locking elements to secure the base station to the bore hole. A downhole probe can be lowered from the base station and measurements made with sensors on the probe. A travel measurement device measures the distance the probe has travelled from the base station."...