F23D 3/40
The capillary action taking place in one or more rigid porous bodies
Official title: the capillary action taking place in one or more rigid porous bodies
F23D3/40 (The capillary action taking place in one or more rigid porous bodies) appears on 110 US grants and 109 published applications in this corpus.
Search patents in F23D- Granted patents
- 110
- Published applications
- 109
- Assignees
- 57
- Inventors
- 218
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 4 |
| 2004 | 2 | 4 |
| 2005 | 2 | 3 |
| 2006 | 2 | 4 |
| 2007 | 1 | 2 |
| 2008 | 0 | 4 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 5 |
| 2012 | 1 | 7 |
| 2013 | 1 | 2 |
| 2014 | 1 | 7 |
| 2015 | 2 | 8 |
| 2016 | 6 | 4 |
| 2017 | 7 | 4 |
| 2018 | 7 | 13 |
| 2019 | 5 | 4 |
| 2020 | 6 | 9 |
| 2021 | 10 | 5 |
| 2022 | 3 | 0 |
| 2023 | 5 | 5 |
| 2024 | 2 | 6 |
| 2025 | 2 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Heating system, comprising a fuel-operated heating device23 Dec 2025US 12,502,934 B2Webasto SE
- Flow-directing element, flow-directing system and heating apparatus11 Mar 2025US 12,246,581 B2Webasto SE
- Wicks for candles and other lighting devices16 Jul 2024US 12,038,172 B2Lumetique, Inc.
- Fluid distributors for fluid nozzles30 Jan 2024US 11,885,496 B2Collins Engine Nozzles, Inc.
- Fuel container for a tabletop fire pit30 Jul 2026US 2026/0218895 A1fire friends GmbH & Co. KG
- Wicks for candles and other lighting devices12 Jun 2025US 2025/0189122 A1Lumetique, Inc.
- A heating system, comprising a fuel-operated heating device29 May 2025US 2025/0170873 A9Webasto SE
- Flame producing assembly reducing fuel evaporation14 Nov 2024US 2024/0377064 A1BIC Violex Single Member S.A.
- Wooden wicks including a booster for a candle and method of making31 Oct 2024US 2024/0360380 A1Delcotto IP, LLC
Most cited
By later US patents
- Capillary feed boiler50US 5,692,095 AAllports, Inc. · 1997
- Liquid vaporization and pressurization apparatus and methods41US 6,162,046 AAllports LLC International · 2000
- Liquid vaporization and pressurization apparatus and methods31US 6,347,936 B1Allports LLC International · 2002
- Method of regulating the fuel-air mixture in a burner28US 4,978,291 A1990
- Vaporization and pressurization of liquid in a porous material25US 6,585,509 B2Allports LLC International · 2003