Patent 11754538 was granted and assigned to Vero Biotech on September, 2023 by the United States Patent and Trademark Office.
A device and method for calibrating a delivery device includes providing a container A containing a nitrite, providing a container B containing an acid, releasing the contents of containers A and B, allowing the nitrite and acid to mix, waiting for a predetermined time, allowing air to combine with the mixture, and using NO and traces of NO