A61F 13/514

Backsheet, i.e. the impermeable cover or layer furthest from the skin

Official title: Backsheet, i.e. the impermeable cover or layer furthest from the skin {(A61F13/15211, A61F13/15252 take precedence)}

A61F13/514 (Backsheet, i.e. the impermeable cover or layer furthest from the skin) appears on 1,801 US grants and 1,633 published applications in this corpus.

Search patents in A61F

Granted patents: 1,801
Published applications: 1,633
Assignees: 296
Inventors: 2,808
Latest grant: 22 Sep 2026

Filings by year

A61F 13/514: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	11	0
1977	14	0
1978	9	0
1979	3	0
1980	7	0
1981	6	0
1982	18	0
1983	14	0
1984	10	0
1985	23	0
1986	35	0
1987	31	0
1988	26	0
1989	37	0
1990	24	0
1991	38	0
1992	34	0
1993	36	0
1994	53	0
1995	55	0
1996	45	0
1997	62	0
1998	57	0
1999	49	0
2000	39	0
2001	34	9
2002	38	54
2003	52	61
2004	31	47
2005	18	66
2006	14	51
2007	23	42
2008	20	48
2009	19	27
2010	19	42
2011	29	65
2012	34	61
2013	48	55
2014	52	67
2015	52	55
2016	47	72
2017	41	100
2018	31	82
2019	45	107
2020	71	134
2021	74	84
2022	56	74
2023	60	56
2024	77	84
2025	48	48
2026	32	42

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

Backsheet, i.e. the impermeable cover or layer furthest from the skin

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