B27K 5/0055
Radio-waves
Official title: {Radio-waves, e.g. microwaves}
B27K5/0055 (Radio-waves) appears on 28 US grants and 51 published applications in this corpus.
Search patents in B27K- Granted patents
- 28
- Published applications
- 51
- Assignees
- 25
- Inventors
- 99
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 9 |
| 2013 | 0 | 6 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 5 |
| 2019 | 2 | 4 |
| 2020 | 1 | 1 |
| 2021 | 2 | 4 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Disinfection system for wood barrels2 Jun 2026US 12,642,878 B2Cleanwood Technology S.L.
- Radiofrequency heating of wood using a three-electrode system having a winged central electrode16 Dec 2025US 12,498,172 B2
- Wood preservative and method for producing same22 Apr 2025US 12,279,615 B2Koppers Performance Chemicals Inc.
- Disinfection system for wood barrels18 Mar 2025US 12,251,482 B2Cleanwood Technology S.L.
- Wood preservative and method for producing same30 Jan 2024US 11,882,833 B2Koppers Performance Chemicals Inc.
- Wood preservative and method for producing same11 Jun 2026US 2026/0157370 A1Koppers Performance Chemicals Inc.
- Disinfection system for wood barrels29 May 2025US 2025/0170289 A1Cleanwood Technology S.L.
- Method for manufacturing a wood-polymer composite11 Apr 2024US 2024/0116209 A1
- Wood preservative and method for producing same28 Mar 2024US 2024/0099303 A1Koppers Performance Chemicals Inc.
- Radiofrequency heating of wood using a three-electrode system having a winged central electrode22 Jun 2023US 2023/0194165 A1
Most cited
By later US patents
- Microwave impregnation of porous materials with thermal energy storage materials39US 5,202,150 AThe United States of America as represented by the United States Department of Energy · 1993
- Method and apparatus for shaping wood material into a predetermined configuration20US 4,469,156 A1984
- Treatment of natural polymer based materials and the products based thereon19US 6,830,784 B2Commonwealth Scientific and Industrial Research Organisation · 2004
- Enhancing the strength, moisture resistance, and fire-resistance of wood, timber, lumber, similar plant-derived construction and building materials, and other cellulosic materials15US 6,040,057 A2000
- Timber surface improving treatment process14US 5,143,748 AMatsushita Electric Works, Ltd. · 1992