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A45D 20/42

Additional devices or measures

Official title: Additional devices or measures, e.g. for noise damping, for musical entertainment

A45D20/42 (Additional devices or measures) appears on 24 US grants and 19 published applications in this corpus.

Search patents in A45D

Granted patents: 24
Published applications: 19
Assignees: 13
Inventors: 48
Latest grant: 1 Sep 2026

Filings by year

A45D 20/42: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	1	0
1977	0	0
1978	0	0
1979	0	0
1980	0	0
1981	0	0
1982	0	0
1983	0	0
1984	0	0
1985	0	0
1986	1	0
1987	0	0
1988	0	0
1989	0	0
1990	0	0
1991	0	0
1992	0	0
1993	2	0
1994	0	0
1995	0	0
1996	1	0
1997	2	0
1998	0	0
1999	0	0
2000	3	0
2001	0	0
2002	1	1
2003	0	3
2004	1	0
2005	0	0
2006	1	1
2007	0	1
2008	0	0
2009	0	1
2010	0	0
2011	1	1
2012	0	2
2013	0	0
2014	3	1
2015	0	0
2016	0	1
2017	1	2
2018	1	2
2019	1	0
2020	0	0
2021	0	0
2022	1	2
2023	1	0
2024	0	1
2025	1	0
2026	1	0

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

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