F27D 2099/0031
Plasma-torch heating
Official title: {Plasma-torch heating}
F27D2099/0031 (Plasma-torch heating) appears on 49 US grants and 24 published applications in this corpus.
Search patents in F27D- Granted patents
- 49
- Published applications
- 24
- Assignees
- 46
- Inventors
- 159
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 5 |
| 2016 | 3 | 2 |
| 2017 | 1 | 3 |
| 2018 | 2 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cyclonic plasma melting furnace5 Dec 2023US 11,835,230 B2Korea Institute of Fusion Energy
- Plasma furnace having lateral discharge gates9 Feb 2021US 10,914,523 B2Korea Hydro & Nuclear Power Co., Ltd.
- Sealed plasma melting furnace for treating low- and intermediate-level radioactive waste22 Dec 2020US 10,871,288 B2Tripl Co., Ltd.
- Plasma furnace8 Dec 2020US 10,861,613 B2Korea Hydro & Nuclear Power Co., Ltd.
- Plasma and oxygas fired furnace29 Oct 2019US 10,458,000 B2Umicore AG & Co. KG
- Method and device for plasma heating of the internal walls of a vacuum furnace1 Oct 2026US 2026/0302140 A1
- Calcination reactor arrangement, calcination system and calcination method20 Aug 2026US 2026/0241355 A1Limearc Process AB
- Method of preparing a melt for the production of man-made mineral fibres11 Jun 2026US 2026/0159430 A1Rockwool A/S
- Device for providing a plasma5 Mar 2026US 2026/0066235 A1Thermal Processing Solutions, Inc.
- Hybrid process and hybrid device for low-co2 or for co2-free high-temperature technologies for the thermal treatment or production of inorganic materials14 Nov 2024US 2024/0377138 A1Technische Universität Bergakademie Freiberg
Most cited
By later US patents
- Process for improving the gas distribution in air-lift loop reactors66US 4,545,945 AHoechst Aktiengesellschaft · 1985
- Method for the melting, combustion or incineration of materials and apparatus therefor29US 5,548,611 ASchuller International, Inc. · 1996
- Electric arc gasifier as a waste processor23US 6,173,002 B22001
- Plasma furnace and a method of operating the same18US 5,579,705 AKansai Denryoku Kabushiki Kaisha · 1996
- Plasma arc furnaces17US 4,521,890 AJohnson Matthey Public Limited Company · 1985