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:
Feb. 24, 2026
Filed:
Apr. 17, 2020
Align Technology, Inc., San Jose, CA (US);
Ian Kitching, Saratoga, CA (US);
Ka M. Cheang, Sunnyvale, CA (US);
Align Technology, Inc., San Jose, CA (US);
Abstract
Methods and systems for determining a corrective stage in orthodontic treatment. Methods may include presenting a menu for a user to enter a pre-determined tolerance or a maximum number of iterations for performing a surface matching algorithm. Methods may include matching one or more teeth of a previously segmented teeth model to one or more corresponding teeth of a current teeth image. The matching may include executing the surface matching algorithm. The methods may include iteratively finding closes sample points, determining whether distances between closest sample points exceed a predetermined tolerance, and adjusting the distances. A current teeth model may be generated based on the adjusted previously segmented teeth model. A current teeth model using the corrective stage may be generated.