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:
Nov. 25, 2025
Filed:
Oct. 18, 2023
Acushnet Company, Fairhaven, MA (US);
Erin Mcdermott, Providence, RI (US);
Manjari Kuntimaddi, Raynham, MA (US);
Dennis Britton, North Dartmouth, MA (US);
Acushnet Company, Fairhaven, MA (US);
Abstract
Golf balls having core layers with individual hardness gradients are provided. The cores have at least one layer with an increased 'positive' hardness gradient (or a “hard-to-soft” hardness) where the outer surface of the core is harder than the center. The increased positive hardness gradient can be achieved by introducing a water-releasing agent into the core rubber formulation during the curing process. The cores may also have a “zero” hardness gradient in another layer. By utilizing different hardness gradients in the core layers, the present disclosure allows for the properties of the final golf ball to be manipulated to produce desired performance characteristics.