B32B 3/28

Characterised by a layer comprising a deformed thin sheet , i.e. the

Official title: characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence)

B32B3/28 (Characterised by a layer comprising a deformed thin sheet , i.e. the) appears on 1,998 US grants and 2,344 published applications in this corpus.

Search patents in B32B

Granted patents: 1,998
Published applications: 2,344
Assignees: 1,237
Inventors: 4,584
Latest grant: 6 Oct 2026

Filings by year

B32B 3/28: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	26	0
1977	17	0
1978	23	0
1979	21	0
1980	21	0
1981	14	0
1982	18	0
1983	17	0
1984	23	0
1985	17	0
1986	10	0
1987	25	0
1988	11	0
1989	13	0
1990	10	0
1991	13	0
1992	15	0
1993	10	0
1994	15	0
1995	13	0
1996	17	0
1997	38	0
1998	35	0
1999	26	0
2000	18	0
2001	15	13
2002	16	33
2003	24	31
2004	28	55
2005	14	60
2006	20	58
2007	17	50
2008	22	29
2009	13	68
2010	30	94
2011	37	89
2012	50	84
2013	59	104
2014	64	124
2015	79	116
2016	68	134
2017	86	165
2018	95	175
2019	131	175
2020	149	152
2021	98	125
2022	106	104
2023	89	127
2024	96	80
2025	85	66
2026	41	33

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

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