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:
Apr. 14, 2026
Filed:
Oct. 06, 2023
Ut-battelle, Llc, Oak Ridge, TN (US);
Philip R. Boudreaux, Knoxville, TN (US);
Singanallur Vaidyanathan Venkatakrishnan, Knoxville, TN (US);
Emishaw D. Iffa, Knoxville, TN (US);
Diana E. Hun, Lenoir City, TN (US);
William Powell Partridge, Jr., Oak Ridge, TN (US);
Gurneesh Singh Jatana, Knoxville, TN (US);
Rui Zhang, Oak Ridge, TN (US);
UT-Battelle, LLC, Oak Ridge, TN (US);
Abstract
A non-invasive technique to measure exfiltration and infiltration (leakage) in buildings including a system and method employing RFN-BOS photography. Leakage through a building envelope can be visualized using RFN-BOS photography when the background has sufficient texture and the temperature difference between the leakage and ambient air is sufficient. Leakage can be detected when there is a temperature difference of as low as 12° C.-15° C. through CMU and brick claddings. A minimum ΔT detection limit can be reduced to 5° C. so that the RFN-BOS technique can be used through all climate zones, and use of a sufficiently textured cladding in which the contrast textural feature is at 1,650 or greater. If the cladding has insufficient texture, the system uses a projection system to first project a high contrasting image pattern on the cladding surface. Prioritized sealing of leaks is provided based on an order of their corresponding leak-ranking parameters.