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:
Aug. 11, 2026
Filed:
Sep. 29, 2022
The Regents of the University of California, Oakland, CA (US);
Tyler Susko, Goleta, CA (US);
Elliot Hawkes, Goleta, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A variable friction shoe sole includes a midsole body, one or more compressible portions made of a compressible material, one or more low-friction portions vertically aligned with the one or more compressible portions, and one or more intermediate layers located between the one or more low-friction portions and the one or more compressible portions. The one or more low-friction portions are prominent of the midsole body when vertical ground reaction forces (GRFs) applied to the variable friction shoe sole are low, and wherein an increase in GRFs compresses the one or more compressible portions and causes the one or more low-friction portions to retract inwards.