D21F 5/004
Drying webs by contact with heated surfaces or materials
Official title: {Drying webs by contact with heated surfaces or materials}
D21F5/004 (Drying webs by contact with heated surfaces or materials) appears on 55 US grants and 21 published applications in this corpus.
Search patents in D21F- Granted patents
- 55
- Published applications
- 21
- Assignees
- 22
- Inventors
- 87
- Latest grant
- 27 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 3 |
| 2020 | 0 | 0 |
| 2021 | 4 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Former of water laid asset that utilizes a structured fabric as the outer wire27 Feb 2024US 11,913,170 B2Structured I, LLC
- Sheet manufacturing apparatus and sheet manufacturing method12 Sep 2023US 11,753,768 B2Seiko Epson Corporation
- Drying hood, drying arrangement and use thereof14 Sep 2021US 11,118,310 B2Voith Patent GmbH
- Method for the production of a film comprising microfibrillated cellulose, a film and a paper or paperboard product31 Aug 2021US 11,105,045 B2Stora Enso OYJ
- Former of water laid asset that utilizes a structured fabric as the outer wire24 Aug 2021US 11,098,448 B2Structured I, LLC
- Paper producing system23 Jul 2026US 2026/0210045 A1Paper Excellence Canada Holdings Corporation
- Device for reducing a moisture content of a moist, fiber-containing material1 Aug 2024US 2024/0254692 A1Berndorf Band GmbH
- Sheet manufacturing apparatus and sheet manufacturing method17 Nov 2022US 2022/0364306 A1Seiko Epson Corporation
- Former of water laid asset that utilizes a structured fabric as the outer wire11 Nov 2021US 2021/0348333 A1Structured I, LLC
- Pre-drier apparatus and method8 Jul 2021US 2021/0207322 A1Palo Alto Research Center Incorporated
Most cited
By later US patents
- Systems for tissue dried with metal bands120US 6,701,637 B2Kimberly-Clark Worldwide, Inc. · 2004
- Process and apparatus for making foreshortened cellulsic structure77US 6,139,686 AThe Procter & Gamble Company · 2000
- Method of continuous drying of a paper or other porous web and a drying device for applying this method46US 4,461,095 AOy Tampella AB · 1984
- Method of drying a cardboard or a paper web and drying device for applying this method31US 4,112,586 AOy Tampella AB · 1978
- Method of and a device for drying a paper web or the like28US 4,622,758 AOy Tampella AB · 1986