F27D 2009/0021
With the parallel tube parts close to each other
Official title: {with the parallel tube parts close to each other, e.g. a serpentine}
F27D2009/0021 (With the parallel tube parts close to each other) appears on 64 US grants and 40 published applications in this corpus.
Search patents in F27D- Granted patents
- 64
- Published applications
- 40
- Assignees
- 49
- Inventors
- 109
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 3 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 4 |
| 2017 | 0 | 1 |
| 2018 | 7 | 4 |
| 2019 | 2 | 4 |
| 2020 | 1 | 3 |
| 2021 | 1 | 2 |
| 2022 | 4 | 3 |
| 2023 | 0 | 3 |
| 2024 | 2 | 2 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Recombinant virus, composition comprising the same, and uses thereof21 Apr 2026US 12,607,406 B2Academia Sinica
- Chilling unit, heat treatment apparatus including same, and heat treatment method7 Apr 2026US 12,595,965 B2Semes Co., Ltd.
- Method for maintenance of a cooling assembly for a metallurgical furnace15 Apr 2025US 12,276,458 B2Paul Wurth Deutschland GmbH
- Single mounting cast iron or copper stave cooler25 Mar 2025US 12,259,186 B2MacRae Technologies, Inc.
- Recombinant virus, composition comprising the same, and uses thereof10 Sep 2024US 12,085,340 B2Academia Sinica
- Recombinant virus, composition comprising the same, and uses thereof9 Jul 2026US 2026/0194298 A1Academia Sinica
- Furnace vessel for electric arc, metallurgical or refining furnaces and system thereof28 May 2026US 2026/0146795 A1
- Cooling element and a method in connection with a cooling element1 May 2025US 2025/0137724 A1Metso Metals Oy
- Recombinant virus, composition comprising the same, and uses thereof1 May 2025US 2025/0137725 A1Academia Sinica
- Single mounting cast iron or copper stave cooler4 Jul 2024US 2024/0219120 A1MacRae Technologies, Inc.
Most cited
By later US patents
- Vessel for metal smelting furnace39US 4,207,060 ADemag Aktiengesellschaft · 1980
- Forced cooling panel for lining a metallurgical furnace32US 4,455,017 AEMPCO (Canada) Ltd. · 1984
- Metallurgical vessel24US 5,332,199 AFuchs Systemtechnik GmbH · 1994
- Water cooled panel used in an electric furnace21US 4,221,922 ASanyo Special Steel Co., Ltd. · 1980
- Cooling panel for electric arc furnace19US 4,637,034 AHylsa, S. A. · 1987