D21F 5/14
Drying webs by applying vacuum
D21F5/14 (Drying webs by applying vacuum) appears on 29 US grants and 20 published applications in this corpus.
Search patents in D21F- Granted patents
- 29
- Published applications
- 20
- Assignees
- 17
- Inventors
- 46
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 4 |
| 2020 | 3 | 2 |
| 2021 | 4 | 3 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Papermaking machine that utilizes only a structured fabric in the forming of paper9 Sep 2025US 12,410,560 B2Structured I, LLC
- Former of water laid asset that utilizes a structured fabric as the outer wire27 Feb 2024US 11,913,170 B2Structured I, LLC
- Heat recovery from vacuum blowers on a paper machine6 Feb 2024US 11,891,759 B2Structured I, LLC
- Method for producing sheet containing fine fibers3 Jan 2023US 11,542,659 B2Oji Holdings Corporation
- Papermaking machine that utilizes only a structured fabric in the forming of paper1 Nov 2022US 11,486,091 B2Structured I, LLC
- Papermaking machine that utilizes only a structured fabric in the forming of paper4 Dec 2025US 2025/0369184 A1Structured I, LLC
- Papermaking machine that utilizes only a structured fabric in the forming of paper7 Nov 2024US 2024/0368836 A1Structured I, LLC
- Papermaking machine that utilizes only a structured fabric in the forming of paper7 Nov 2024US 2024/0368838 A1Structured I, LLC
- Device for reducing a moisture content of a moist, fiber-containing material1 Aug 2024US 2024/0254692 A1Berndorf Band GmbH
- Papermaking machine that utilizes only a structured fabric in the forming of paper19 Jan 2023US 2023/0014807 A1Structured I, LLC
Most cited
By later US patents
- Capillary dewatering method and apparatus68US 5,598,643 AKimberly-Clark Tissue Company · 1997
- Capillary dewatering method and apparatus57US 5,701,682 AKimberly-Clark Worldwide, Inc. · 1997
- Capillary dewatering method38US 5,699,626 AKimberly-Clark Worldwide, Inc. · 1997
- Method and apparatus for drying objects23US 4,357,758 AValmet Corporation · 1982
- Method and device for drying paper21US 5,383,288 AValmet Paper Machinery Inc. · 1995