G11B 5/73

Base layers , i.e. all non-magnetic layers lying under a lowermost magnetic

Official title: Base layers {, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer}

G11B5/73 (Base layers , i.e. all non-magnetic layers lying under a lowermost magnetic) appears on 2,875 US grants and 2,162 published applications in this corpus.

Search patents in G11B

Granted patents: 2,875
Published applications: 2,162
Assignees: 369
Inventors: 3,489
Latest grant: 6 Oct 2026

Filings by year

G11B 5/73: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	6	0
1977	3	0
1978	6	0
1979	5	0
1980	7	0
1981	5	0
1982	9	0
1983	11	0
1984	12	0
1985	34	0
1986	46	0
1987	70	0
1988	50	0
1989	46	0
1990	34	0
1991	42	0
1992	53	0
1993	38	0
1994	58	0
1995	73	0
1996	74	0
1997	73	0
1998	99	0
1999	104	0
2000	113	0
2001	99	59
2002	87	117
2003	93	160
2004	150	168
2005	95	164
2006	84	123
2007	80	110
2008	56	95
2009	73	87
2010	54	82
2011	62	73
2012	40	62
2013	54	43
2014	68	60
2015	64	56
2016	50	47
2017	48	52
2018	29	44
2019	46	63
2020	63	87
2021	75	120
2022	119	58
2023	55	75
2024	59	76
2025	64	37
2026	37	44

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

Base layers , i.e. all non-magnetic layers lying under a lowermost magnetic

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