D21F 5/024
Using electrical means
Official title: {using electrical means}
D21F5/024 (Using electrical means) appears on 18 US grants and 12 published applications in this corpus.
Search patents in D21F- Granted patents
- 18
- Published applications
- 12
- Assignees
- 22
- Inventors
- 47
- Latest grant
- 27 Jun 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heated roll27 Jun 2017US 9,693,393 B2Robert Burkle GmbH
- Method for heating of a roll and a heatable roll26 Nov 2002US 6,486,448 B1Metso Corporation
- Induction-heating roller device16 Apr 2002US 6,373,035 B1Tokuden Co., Ltd.
- Heating roller20 Feb 2001US 6,191,395 B1Jamco Corporation
- Heated roller8 Aug 2000US 6,100,508 AEduard Kusters Maschinenfabrik GmbH & Co. KG
- Paper making machine27 Aug 2026US 2026/0250907 A1Toscotec S.P.A.
- Yankee drier for paper production6 Nov 2025US 2025/0341055 A1Toscotec S.P.A.
- Papermaking machine6 Nov 2025US 2025/0341056 A1Toscotec S.P.A.
- Cylinder for Drying a Fibrous Web18 Sep 2025US 2025/0290695 A1Andritz Inc.
- Heated roll4 Feb 2016US 2016/0037583 A1Robert Burkle GmbH
Most cited
By later US patents
- Apparatus and method for electromagnetic heating of a roll32US 4,675,487 AValmet Corporation · 1987
- Method for heating a cylinder or roll with an electrically conductive ceramic outer layer26US 4,948,466 AValmet Paper Machinery Inc. · 1990
- Method for eddy current heating a roll in a paper machine17US 4,614,565 AValmet Corporation · 1986
- Method and apparatus for the rapid consolidation and/or drying of moist porous webs16US 4,788,779 APulp and Paper Research Institute of Canada · 1988
- Apparatus for heating strip elements in a continuous pass process by electromagnetic induction14US 4,350,861 ACompagnie Electro-Mecanique · 1982