F23K 3/02
Pneumatic feeding arrangements, i.e. by air blast
F23K3/02 (Pneumatic feeding arrangements, i.e. by air blast) appears on 273 US grants and 171 published applications in this corpus.
Search patents in F23K- Granted patents
- 273
- Published applications
- 171
- Assignees
- 151
- Inventors
- 608
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 12 | 0 |
| 1985 | 9 | 0 |
| 1986 | 11 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 2 |
| 2002 | 2 | 1 |
| 2003 | 3 | 7 |
| 2004 | 6 | 9 |
| 2005 | 6 | 5 |
| 2006 | 5 | 1 |
| 2007 | 1 | 7 |
| 2008 | 2 | 9 |
| 2009 | 3 | 5 |
| 2010 | 2 | 15 |
| 2011 | 4 | 14 |
| 2012 | 7 | 15 |
| 2013 | 13 | 9 |
| 2014 | 9 | 13 |
| 2015 | 12 | 11 |
| 2016 | 5 | 2 |
| 2017 | 11 | 7 |
| 2018 | 5 | 4 |
| 2019 | 2 | 4 |
| 2020 | 9 | 5 |
| 2021 | 6 | 7 |
| 2022 | 3 | 4 |
| 2023 | 2 | 5 |
| 2024 | 4 | 4 |
| 2025 | 3 | 4 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for heating of dispersed metallic particles29 Sep 2026US 12,747,858 B2Oqab Dietrich Induction Inc.
- Conical fuel particulate distributor for coal supply conduit19 May 2026US 12,631,329 B2SAS Global Corporation
- Feeder and method for feeding raw material comprising plastic21 Apr 2026US 12,607,350 B2Teknologian tutkimuskeskus VTT Oy
- Distribution ring for fuel in a burner, burner having such a distribution ring and drying drum having such a burner31 Mar 2026US 12,590,697 B2Benninghoven Zweigniederlassung Der Wirtgen Mineral Technologies GmbH
- Pneumatic conveying system and circulating fluidized bed boiler10 Mar 2026US 12,571,534 B2Shanxi Research Institute of Huairou Laboratory
- Ignition, burning stabilization, and energy conservation integrated warm nuclear fusion and pulverized coal combined burning system4 Jun 2026US 2026/0153234 A1Leading Guochuang (Beijing) Technology Group Co., LTD
- Combustion system comprising an annular shroud burner5 Feb 2026US 2026/0036299 A1Jupiter Oxygen Corporation
- Coal blending and burning system based on belt conveyors with vertical process modules25 Dec 2025US 2025/0388413 A1Huaneng Power International, Inc. Shanghai Shidongkou First Power Plant
- Pneumatic conveying system and circulating fluidized bed boiler18 Dec 2025US 2025/0383085 A1Shanxi Research Institute of Huairou Laboratory
- Pellet transfer system13 Nov 2025US 2025/0346442 A1
Most cited
By later US patents
- Burner furnace for solid fuels and a method of burning different kinds of solid fuel in this furnace357US 4,250,817 AThermo Murg K.G. · 1981
- Combustion method and apparatus for producing a carbon dioxide end product164US 6,202,574 B1ABB Alstom Power Inc. · 2001
- Biomass gasification system and method82US 6,808,543 B2Ferco Enterprises, Inc. · 2004
- Coal slurry system65US 4,765,781 ASouthwestern Public Service Company · 1988
- Pulverized coal carriability improver62US 6,083,289 AKao Corporation · 2000