B21J 19/02
Hearths
Official title: Hearths; Air supply arrangements specially adapted therefor
B21J19/02 (Hearths) appears on 6 US grants and 3 published applications in this corpus.
Search patents in B21J- Granted patents
- 6
- Published applications
- 3
- Assignees
- 1
- Inventors
- 8
- Latest grant
- 14 Dec 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 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 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Kit comprising components made from planar sheet material for forming forge table and forge pot, and valve component for selectively communicating airflow source and forge pot14 Dec 2021US 11,198,174 B2Cloverdale Forge
- Portable heat treatment apparatus4 Dec 2018US 10,145,618 B2
- Miniature forge24 Oct 1989US 4,875,854 A
- Gas horseshoe forge18 Mar 1986US 4,576,574 A
- Gas forge3 Jan 1984US 4,424,025 A
- Kit comprising components made from planar sheet material for forming forge table and forge pot, and valve component for selectively communicating airflow source and forge pot1 Oct 2020US 2020/0306819 A1Cloverdale Forge
- Blacksmith forge assembly22 Aug 2019US 2019/0255598 A1
- Portable heat treatment apparatus15 Dec 2016US 2016/0361752 A1
Most cited
By later US patents