C21C 2007/0012
Lead
Official title: {Lead}
C21C2007/0012 (Lead) appears on 5 US grants and 1 published applications in this corpus.
Search patents in C21C- Granted patents
- 5
- Published applications
- 1
- Assignees
- 7
- Inventors
- 11
- Latest grant
- 4 May 2021
Filings by 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 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rail4 May 2021US 10,995,396 B2Nippon Steel Corporation
- Lead-containing additive for steel melts9 Jan 1990US 4,892,580 ASKW Trostberg Aktiengesellschaft
- Tundish for mixing alloying elements with molten metal8 Dec 1987US 4,711,429 AUSX Corporation
- Method of manufacturing a lead alloy steel and a steel made according to the method20 May 1980US 4,203,763 AScandinavian Lancers Aktiebolag
- Leaded steel bar free of lead macroinclusions1 Nov 1977US 4,056,387 AInland Steel Company
Most cited
By later US patents
- Tundish for mixing alloying elements with molten metal7US 4,711,429 AUSX Corporation · 1987
- Leaded steel bar free of lead macroinclusions2US 4,056,387 AInland Steel Company · 1977
- Method of manufacturing a lead alloy steel and a steel made according to the method1US 4,203,763 AScandinavian Lancers Aktiebolag · 1980
- Lead-containing additive for steel melts1US 4,892,580 ASKW Trostberg Aktiengesellschaft · 1990