D21G 1/0266
Using a heat-transfer fluid
Official title: {using a heat-transfer fluid (D21G1/026 takes precedence)}
D21G1/0266 (Using a heat-transfer fluid) appears on 68 US grants and 35 published applications in this corpus.
Search patents in D21G- Granted patents
- 68
- Published applications
- 35
- Assignees
- 42
- Inventors
- 137
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 6 |
| 2003 | 2 | 4 |
| 2004 | 6 | 2 |
| 2005 | 0 | 3 |
| 2006 | 2 | 1 |
| 2007 | 0 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 3 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 4 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Corrugating roller having enhanced heat transfer effectiveness27 May 2025US 12,311,633 B2SRC, Inc.
- Thermal roller and producing process1 Dec 2020US 10,852,073 B2Gtk Timek Group SA
- Suction or blow thermal roller25 Feb 2020US 10,569,448 B2Gtk Timek Group SA
- Heating roller and film production method18 Feb 2020US 10,563,299 B2Sumitomo Chemical Company, Limited
- Method for modernizing a multiroll calender, in particular for modernizing a supercalender and a modernized multiroll calender, in particular a modernized supercalender15 Sep 2015US 9,133,580 B2Valmet Technologies Oy
- Roller Having Heating Device, Printing Unit, Embossing Unit, and/or Rolling Mill Having Such a Roller and Method for Converting a Heating Device of a Roller22 Jan 2026US 2026/0021523 A1
- Calender and method for controlling such a calender24 Nov 2022US 2022/0372704 A1Ing. Gerritse Holding B.V.
- Calender and method for controlling such a calender24 Nov 2022US 2022/0372705 A1Ing. Gerritse Holding B.V.
- Calender and method for controlling such a calender13 Oct 2022US 2022/0325475 A1Ing. Gerritse Holding B.V.
- Corrugating roller having enhanced heat transfer effectiveness17 Mar 2022US 2022/0080695 A1SRC, Inc.
Most cited
By later US patents
- Hot air calender roll controller44US 4,768,433 AMeasurex Corporation · 1988
- Control of oil distribution in heated embossing rolls29US 4,252,184 AKimberly-Clark Corporation · 1981
- Enhanced cross-directional caliper control system22US 5,743,177 AUnion Camp Corporation · 1998
- Method for heating a roll and a heatable roll20US 5,549,154 AValmet Corporation · 1996
- Rotary unit for use in calendars or the like17US 4,235,002 AKleinewefers GmbH · 1980