The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2026
Filed:
May. 31, 2022
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Benjamin Franklin Cutler, Redmond, WA (US);
Ruslan Nagimov, Redmond, WA (US);
Eric Clarence Peterson, Woodinville, WA (US);
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
Cryogenic removal of carbon dioxide from the atmosphere, or CryoDAC (Cryogenic Direct Air Capture), uses extremely low temperatures to convert atmospheric COinto a frozen solid while other components of air such as oxygen and nitrogen remain as gases. Air from the atmosphere is passed through a recuperative heat exchanger to cool the air to a temperature slightly above the deposition point of CO. The cooled air is then passed over a deposition surface chilled to a temperature below the deposition point of CO. Carbon dioxide in the air transitions from gas to solid form upon contact with the deposition surface. The frozen COis collected and stored. The cold air with COremoved is passed back through the recuperative heat exchanger to cool incoming air and is then returned to the atmosphere. The deposition surface may be cooled by a cryogenic refrigerator.