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:
Dec. 16, 2025
Filed:
Jan. 20, 2023
Lennox Industries Inc., Richardson, TX (US);
Satish Seshayya, Plano, TX (US);
Vinay R. Thatigutla, Frisco, TX (US);
Lennox Industries Inc., Richardson, TX (US);
Abstract
A system is configured to receive video footage of evaporator coil slabs after they exit an automated coil brazer. The system is further configured to convert the video footage to greyscale and isolate frames from the greyscale video footage. Each frame comprises an image of a different evaporator coil slab. The system is further configured to generate a first digital fingerprint comprising a binary feature vector for each point in a first subset of feature points from the first frame, and generate a second digital fingerprint comprising a binary feature vector for each point in a second subset of feature points from the second frame.