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Y10S 502/521

Metal contaminant passivation

Y10S502/521 (Metal contaminant passivation) appears on 147 US grants and 5 published applications in this corpus.

Search patents in Y10S

Granted patents: 147
Published applications: 5
Assignees: 41
Inventors: 165
Latest grant: 24 Mar 2015

Filings by year

Y10S 502/521: granted patents and published applications per publication year
Year	Granted patents	Published applications
1977	4	0
1978	2	0
1979	2	0
1980	10	0
1981	15	0
1982	8	0
1983	1	0
1984	7	0
1985	13	0
1986	4	0
1987	6	0
1988	7	0
1989	8	0
1990	14	0
1991	11	0
1992	5	0
1993	6	0
1994	4	0
1995	6	0
1996	0	0
1997	0	0
1998	1	0
1999	5	0
2000	2	0
2001	2	0
2002	0	0
2003	0	0
2004	0	0
2005	0	1
2006	0	0
2007	1	0
2008	0	0
2009	0	0
2010	0	0
2011	0	0
2012	0	0
2013	0	1
2014	1	1
2015	2	2

By publication year. Applications have been published since 2001.

Recent patents

Exhaust system for a lean-burn IC engine comprising a PGM component and a SCR catalyst24 Mar 2015US 8,986,635 B2Johnson Matthey Public Limited Company
Process for elimination of hexavalent chromium compounds on metallic substrates within zero-PGM catalyst systems3 Mar 2015US 8,969,228 B2Clean Diesel Technologies, Inc.
Exhaust system for a lean-burn IC engine comprising a PGM component and a SCR catalyst11 Mar 2014US 8,668,891 B2Johnson Matthey Public Limited Company
In an amine or nitrile embedded passivated hydrogenation catalyst24 Apr 2007US 7,208,448 B2Akzo Nobel N. V.
Method and compositions for stabilization of heavy metals, acid gas removal and pH control in contaminated matrices6 Nov 2001US 6,313,368 B1

Most cited

By later US patents