B21K 21/10
Cone-shaped or bell-shaped articles
Official title: cone-shaped or bell-shaped articles, e.g. insulator caps
B21K21/10 (Cone-shaped or bell-shaped articles) appears on 9 US grants and 5 published applications in this corpus.
Search patents in B21K- Granted patents
- 9
- Published applications
- 5
- Assignees
- 10
- Inventors
- 18
- Latest grant
- 2 Jul 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Solid state lighting device with improved heatsink2 Jul 2013US 8,476,812 B2Cree, Inc.
- Deep drawn nozzle for precision liquid dispensing3 Jul 2012US 8,210,455 B2
- Method of making a thin wall nozzle19 Jun 2007US 7,231,716 B2
- Method and apparatus for producing thin walled tubular product with thick walled flange6 Feb 2007US 7,171,838 B2
- Process for manufacturing metal parts by free forging and drop forging in a press1 Apr 1997US 5,615,465 ACommissariat A L' Energie Atomique
- Solid state lighting device with improved heatsink13 Jan 2011US 2011/0006658 A1Cree LED Lighting Solutions, Inc.
- Method and apparatus for producing thin walled tubular product with thick walled flange9 Dec 2004US 2004/0244459 A1Akimasa Shiokawa
- Method of making a thin wall nozzle17 Apr 2003US 2003/0071149 A1
- Nozzle for precision liquid dispensing and method of making27 Feb 2003US 2003/0038190 A1
- Nozzle for precision liquid dispensing and method of making10 Oct 2002US 2002/0145061 A1
Most cited
By later US patents
- Cold forming dies and cold forming process57US 4,945,749 AGeneral Motors Corporation · 1990
- Process and apparatus for producing an electrical battery pole or terminal42US 4,776,197 AAquila Piombo per Caccia e Tiro S.r.l. · 1988
- Method and apparatus for producing thin walled tubular product with thick walled flange25US 7,171,838 B22007
- Method of making a thin wall nozzle13US 7,231,716 B22007
- Solid state lighting device with improved heatsink12US 8,476,812 B2Cree, Inc. · 2013