B27K 3/0207
Pretreatment of wood before impregnation
Official title: {Pretreatment of wood before impregnation}
B27K3/0207 (Pretreatment of wood before impregnation) appears on 123 US grants and 147 published applications in this corpus.
Search patents in B27K- Granted patents
- 123
- Published applications
- 147
- Assignees
- 108
- Inventors
- 330
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 4 |
| 2013 | 5 | 8 |
| 2014 | 0 | 5 |
| 2015 | 3 | 2 |
| 2016 | 3 | 6 |
| 2017 | 1 | 6 |
| 2018 | 4 | 8 |
| 2019 | 6 | 13 |
| 2020 | 8 | 12 |
| 2021 | 6 | 19 |
| 2022 | 9 | 12 |
| 2023 | 5 | 11 |
| 2024 | 13 | 13 |
| 2025 | 7 | 5 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Transparent wood surface imprinting optical device and application thereof30 Jun 2026US 12,667,994 B2Nanjing Forestry University
- Method for treating wood and construction element19 May 2026US 12,629,862 B2Houtindustrie “Mevo B.V.”
- Wood protecting methods and wood products produced with the methods5 May 2026US 12,617,120 B2OrganoWood AB
- Part made from lignocellulosic material and method for producing such a part5 May 2026US 12,617,121 B2SAS Woodoo
- Modified wood and transparent wood composites, and systems and methods for forming and use thereof17 Mar 2026US 12,576,551 B2University of Maryland, College Park
- Process for the acetylation of wood and acetylated wood17 Sep 2026US 2026/0273793 A1Titan Wood Limited
- Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process27 Aug 2026US 2026/0249512 A1SAS Woodoo
- Acetylated wood30 Jul 2026US 2026/0216912 A1YKK AP Inc.
- Antimicrobial materials, and systems and methods for fabrication and use thereof16 Jul 2026US 2026/0198500 A1University of Maryland, College Park
- Modified wood and transparent wood composites, and systems and methods for forming and use thereof25 Jun 2026US 2026/0175467 A1University of Maryland, College Park
Most cited
By later US patents
- Process for the preservation of wood63US 3,968,276 ADiversified Wood Products, Inc. · 1976
- Process and apparatus for seasoning wood50US 3,986,268 ADrywood Corporation · 1976
- Wood treatment process48US 6,274,199 B1Chemical Specialties, Inc. · 2001
- Process for treating bamboo and articles made by the process28US 5,976,644 AAmati Bambu Ltd. · 1999
- Aqueous media for the treatment of wood and wooden materials and a process for such treatment22US 4,496,613 AChemische Werke Huls Aktiengesellschaft · 1985