D21F 5/001
Drying webs by radiant heating
Official title: {Drying webs by radiant heating}
D21F5/001 (Drying webs by radiant heating) appears on 53 US grants and 18 published applications in this corpus.
Search patents in D21F- Granted patents
- 53
- Published applications
- 18
- Assignees
- 30
- Inventors
- 92
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 0 | 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
- Method and apparatus for drying preferably a moving material web by means of at least one drying device heated by means of biogas and comprising infrared radiators24 Oct 2023US 11,795,617 B2Meri Environmental Solutions GmbH
- Method for producing sheet containing fine fibers3 Jan 2023US 11,542,659 B2Oji Holdings Corporation
- Convective hood for heat treatment of a continuous strip24 May 2022US 11,339,533 B2Solaronics, Inc.
- Method for producing a wet-laid nonwoven fabric13 Apr 2021US 10,975,504 B2Voith Patent GmbH
- Method for producing sheet containing fine fibers30 Jun 2020US 10,697,118 B2Oji Holdings Corporation
- A paper machine18 Jun 2026US 2026/0168174 A1Valmet Corporation
- Method and machine for producing a material web in a paper machine18 Jul 2024US 2024/0240402 A1Voith Patent GmbH
- Method for drying a material for irradiation, and infrared irradiation device for carrying out said method13 Jul 2023US 2023/0221071 A1Heraeus Noblelight GmbH
- Method and apparatus for drying preferably a moving material web by means of at least one drying device heated by means of biogas and comprising infrared radiators1 Jul 2021US 2021/0198847 A1Meri Environmental Solutions GmbH
- Machine and method for manufacturing tissue paper3 Dec 2020US 2020/0378068 A1A. Celli Paper S.P.A.
Most cited
By later US patents
- Air bearing support apparatus for drying a moving web36US 4,594,795 A1986
- Apparatus for drying a moving web30US 4,494,316 AImpact Systems, Inc. · 1985
- Method for on-machine coating-drying of a paper web or the like29US 5,009,016 AValmet Corporation · 1991
- Apparatus and method for regulating the profile of a paper web passing over a Yankee cylinder in an integrated IR-dryer/Yankee hood27US 4,942,675 AValmet Paper Machinery Inc. · 1990
- Dryer section with moistening devices at latter ends25US 5,557,860 AVoith Sulzer Papermaschinen GmbH · 1996