G02B 6/4431

With provision in the protective covering

Official title: {with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping (break-out terminations G02B6/4471)}

G02B6/4431 (With provision in the protective covering) appears on 500 US grants and 516 published applications in this corpus.

Search patents in G02B

Granted patents: 500
Published applications: 516
Assignees: 158
Inventors: 850
Latest grant: 15 Sep 2026

Filings by year

G02B 6/4431: granted patents and published applications per publication year
Year	Granted patents	Published applications
1977	1	0
1978	0	0
1979	0	0
1980	1	0
1981	0	0
1982	0	0
1983	0	0
1984	2	0
1985	0	0
1986	0	0
1987	4	0
1988	2	0
1989	3	0
1990	5	0
1991	6	0
1992	4	0
1993	4	0
1994	2	0
1995	8	0
1996	0	0
1997	9	0
1998	5	0
1999	7	0
2000	7	0
2001	11	5
2002	9	11
2003	13	12
2004	10	11
2005	7	9
2006	10	14
2007	13	12
2008	9	7
2009	4	8
2010	10	14
2011	2	17
2012	11	16
2013	18	22
2014	25	26
2015	25	29
2016	27	27
2017	27	30
2018	28	27
2019	26	29
2020	27	28
2021	26	25
2022	25	26
2023	19	30
2024	19	34
2025	18	31
2026	11	16

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

Recent patents

Most cited

By later US patents