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A63B 37/0031

Hardness

Official title: {Hardness}

A63B37/0031 (Hardness) appears on 1,752 US grants and 1,693 published applications in this corpus.

Search patents in A63B

Granted patents: 1,752
Published applications: 1,693
Assignees: 73
Inventors: 481
Latest grant: 12 May 2026

Filings by year

A63B 37/0031: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	1	0
1977	0	0
1978	2	0
1979	0	0
1980	2	0
1981	1	0
1982	0	0
1983	0	0
1984	1	0
1985	0	0
1986	1	0
1987	7	0
1988	0	0
1989	3	0
1990	4	0
1991	10	0
1992	1	0
1993	2	0
1994	3	0
1995	3	0
1996	10	0
1997	18	0
1998	62	0
1999	36	0
2000	47	0
2001	74	43
2002	79	100
2003	98	128
2004	82	100
2005	77	71
2006	107	77
2007	71	69
2008	56	71
2009	45	88
2010	44	78
2011	71	82
2012	54	99
2013	64	100
2014	73	56
2015	76	68
2016	65	71
2017	64	63
2018	69	69
2019	89	58
2020	46	51
2021	46	31
2022	25	23
2023	25	20
2024	20	28
2025	12	37
2026	6	12

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Subgroups

Granted patents

A63B 37/0032Hardness gradient78

Recent patents

Golf ball12 May 2026US 12,623,120 B2Sumitomo Rubber Industries, Ltd.
Golf ball12 May 2026US 12,623,121 B1Taylor Made Golf Company, Inc.
Golf balls having increased impact durability7 Apr 2026US 12,594,465 B2Acushnet Company
Use of farnesene, polyfarnesene and farnesene copolymer for golf balls3 Mar 2026US 12,564,766 B1Callaway Golf Company
Golf ball with dual mantle layers24 Feb 2026US 12,558,596 B1Callaway Golf Company

Most cited

By later US patents