D21F 7/001
Wire-changing arrangements
Official title: {Wire-changing arrangements}
D21F7/001 (Wire-changing arrangements) appears on 74 US grants and 14 published applications in this corpus.
Search patents in D21F- Granted patents
- 74
- Published applications
- 14
- Assignees
- 32
- Inventors
- 73
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Screen support rod for screen drawing into a paper machine23 Dec 2025US 12,503,816 B2Voith Patent GmbH
- Belt installation device21 Feb 2023US 11,585,046 B2Valmet Technologies Oy
- Paper machine clothing draw-in device and use of same9 Nov 2021US 11,168,443 B2Voith Patent GmbH
- Endless belt changing apparatus and method14 Jun 2016US 9,365,976 B2Kimberly-Clark Worldwide, Inc.
- Apparatus for inserting or removing a clothing in an industrial machine5 Nov 2013US 8,574,401 B2Metso Paper, Inc.
- Screen support rod for screen drawing into a paper machine18 Jan 2024US 2024/0018720 A1Voith Patent GmbH
- Belt Installation Device24 Dec 2020US 2020/0400220 A1Valmet Technologies Oy
- Paper machine clothing draw-in device and use of same9 Apr 2020US 2020/0109513 A1Voith Patent GmbH
- Endless belt changing apparatus and method28 Jan 2016US 2016/0024715 A1Kimberly-Clark Worldwide, Inc.
- Apparatus for inserting or removing a clothing in an industrial machine4 Oct 2012US 2012/0247703 A1Metso Paper, Inc.
Most cited
By later US patents
- Compact press section with closed draw of the web in a paper machine25US 5,240,563 AValmet Paper Machinery Inc. · 1993
- Roll press for the treatment of a traveling web with connection between the press units25US 5,404,811 AJ. M. Voith GmbH · 1995
- Frame construction in a paper machine press section for facilitating replacement of press rolls and fabrics24US 4,608,125 AValmet Corporation · 1986
- Press section in a paper machine17US 4,440,598 AValmet Corporation · 1984
- Press section and press section/frame construction combination in a paper machine17US 4,919,762 AValmet Paper Machinery Inc. · 1990