D21F 5/046
Using pocket ventilation systems
Official title: {using pocket ventilation systems}
D21F5/046 (Using pocket ventilation systems) appears on 35 US grants and 17 published applications in this corpus.
Search patents in D21F- Granted patents
- 35
- Published applications
- 17
- Assignees
- 13
- Inventors
- 59
- Latest grant
- 28 Feb 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 4 |
| 2007 | 0 | 1 |
| 2008 | 3 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Runnability component and a method for controlling underpressure in a drying section of a paper machine or the like28 Feb 2012US 8,123,908 B2Metso Paper, Inc.
- Runnability component and a method for saving energy in a drying section of a paper machine or the like21 Feb 2012US 8,118,978 B2Metso Paper, Inc.
- Method and arrangement in a paper machine or the like close to a moving web to be dried and usually supported against a wire, sealing device and paper machine19 Jan 2010US 7,648,613 B2Metso Paper, Inc.
- Arrangement for stabilizing a web14 Oct 2008US 7,435,315 B2Metso Paper, Inc.
- Sealing arrangement against a moving fabric9 Sep 2008US 7,422,662 B2Metso Paper, Inc.
- Arrangement and Method for Saving Energy in a Drying Section of a Paper Machine or the Like4 Nov 2010US 2010/0276096 A1Melso Paper Inc.
- Arrangement and Method for Controlling Underpressure in a Drying Section of a Paper Machine or the Like4 Nov 2010US 2010/0276097 A1Metso Paper, Inc.
- Device and process for transferring a material web17 Dec 2009US 2009/0308554 A1
- Device and process for transferring a material web17 Dec 2009US 2009/0308555 A1
- Pocket ventilator4 Sep 2008US 2008/0209758 A9
Most cited
By later US patents
- Method and apparatus for the drying section of a paper machine37US 4,516,330 AValmet Corporation · 1985
- Pocket ventilating apparatus for a multi-cylinder dryer of a paper machine31US 4,539,762 AValmet Corporation · 1985
- Blow box for a dryer29US 4,669,198 ABeloit Corporation · 1987
- Air guide box for stabilizing the path of a paper web28US 4,893,741 AJ. M. Voith GmbH · 1990
- Method of and device for pocket ventilation in the drying section of a paper machine, in particular for high-speed paper machines27US 4,953,297 AValmet Paper Machinery Inc. · 1990