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A63B 37/0032

Hardness gradient

Official title: {Hardness gradient}

A63B37/0032 (Hardness gradient) appears on 78 US grants and 104 published applications in this corpus.

Search patents in A63B

Granted patents: 78
Published applications: 104
Assignees: 12
Inventors: 61
Latest grant: 12 May 2026

Filings by year

A63B 37/0032: granted patents and published applications per publication year
Year	Granted patents	Published applications
2002	0	1
2003	2	1
2004	0	0
2005	0	0
2006	0	1
2007	2	3
2008	1	4
2009	2	1
2010	3	6
2011	3	5
2012	3	4
2013	5	12
2014	5	5
2015	6	8
2016	9	10
2017	3	6
2018	5	13
2019	13	5
2020	3	7
2021	4	1
2022	0	1
2023	2	6
2024	4	2
2025	1	1
2026	2	1

By publication year. 2026 runs to 8 Oct.

Recent patents

Golf ball12 May 2026US 12,623,120 B2Sumitomo Rubber Industries, Ltd.
Golf ball10 Feb 2026US 12,544,628 B2Sumitomo Rubber Industries, Ltd.
Golf balls having cores with increased hardness gradient24 Jun 2025US 12,337,213 B2Acushnet Company
Method of golf ball manufacture employing ultrasonic welding, and resulting golf ball and golf ball components and/or layers2 Jul 2024US 12,023,554 B2Masion de Golf
Golf balls having cores with increased hardness gradient2 Apr 2024US 11,944,875 B2Acushnet Company

Most cited

By later US patents