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C03B 5/2257

By thin-layer fining

Official title: {by thin-layer fining}

C03B5/2257 (By thin-layer fining) appears on 18 US grants and 18 published applications in this corpus.

Search patents in C03B

Granted patents: 18
Published applications: 18
Assignees: 9
Inventors: 44
Latest grant: 2 Dec 2025

Filings by year

C03B 5/2257: granted patents and published applications per publication year
Year	Granted patents	Published applications
1988	1	0
1989	1	0
1990	1	0
1991	0	0
1992	0	0
1993	0	0
1994	0	0
1995	0	0
1996	0	0
1997	0	0
1998	0	0
1999	0	0
2000	0	0
2001	0	0
2002	0	1
2003	0	0
2004	0	0
2005	0	0
2006	0	1
2007	0	0
2008	0	0
2009	1	1
2010	0	2
2011	0	1
2012	0	1
2013	1	1
2014	2	1
2015	1	2
2016	1	0
2017	2	2
2018	1	1
2019	1	1
2020	2	0
2021	0	2
2022	2	0
2023	0	0
2024	0	1
2025	1	0

By publication year. Applications have been published since 2001.

Recent patents

Fining molten material using reduced pressure2 Dec 2025US 12,486,190 B2Owens-Brockway Glass Container Inc.
Fining glass using high temperature and low pressure24 May 2022US 11,339,077 B2Owens-Brockway Glass Container Inc.
Glass fining using an objective and molten metal3 May 2022US 11,319,236 B2Owens-Brockway Glass Container Inc.
Refining glass with reduced pressure8 Dec 2020US 10,858,277 B2Owens-Brockway Glass Container Inc.
Process and apparatus for refining molten glass20 Oct 2020US 10,807,897 B2Owens-Brockway Glass Container Inc.

Most cited

By later US patents