ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,471,809, issued on Nov. 18, was assigned to OpCO Medical Aps (Birkerod, Denmark).

"Device for determining the hemoglobin count of a patient" was invented by Carsten Lundby (Birkerod, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a device for determination of the hemoglobin amount of a patient comprising: a closed gas volume (100); a gas outlet comprising a mouth piece (47), wherein the mouth piece (47) is configured to enable inhalation and exhalation of gas into and out of the closed gas volume (100); a means for carbon monoxide supply into the closed gas volume (100); characterized in that the means for carbon...