B27K 3/08
Impregnating by pressure
Official title: Impregnating by pressure {, e.g. vacuum impregnation}
B27K3/08 (Impregnating by pressure) appears on 279 US grants and 270 published applications in this corpus.
Search patents in B27K- Granted patents
- 279
- Published applications
- 270
- Assignees
- 210
- Inventors
- 577
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 10 | 0 |
| 1989 | 13 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 12 | 3 |
| 2002 | 5 | 4 |
| 2003 | 7 | 8 |
| 2004 | 3 | 5 |
| 2005 | 1 | 8 |
| 2006 | 1 | 8 |
| 2007 | 1 | 8 |
| 2008 | 0 | 4 |
| 2009 | 0 | 8 |
| 2010 | 2 | 5 |
| 2011 | 0 | 8 |
| 2012 | 4 | 4 |
| 2013 | 5 | 12 |
| 2014 | 3 | 15 |
| 2015 | 6 | 12 |
| 2016 | 12 | 18 |
| 2017 | 6 | 24 |
| 2018 | 10 | 18 |
| 2019 | 19 | 15 |
| 2020 | 9 | 14 |
| 2021 | 9 | 9 |
| 2022 | 14 | 17 |
| 2023 | 8 | 12 |
| 2024 | 9 | 13 |
| 2025 | 8 | 8 |
| 2026 | 2 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing a wooden composite board, and device for producing a wooden composite board15 Sep 2026US 12,734,723 B2SWISS KRONO Tec AG
- Method for treating wood and construction element19 May 2026US 12,629,862 B2Houtindustrie “Mevo B.V.”
- Wood composites and processes to modify same using stable, low pH aqueous silicate suspensions30 Dec 2025US 12,508,737 B2T2Earth Holdings LLC
- Reactor system and process for wood modification19 Aug 2025US 12,390,952 B2Titan Wood Limited
- Boards from acetylated rubberwood5 Aug 2025US 12,377,574 B2Tricoya Technologies Ltd
- 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
- Impregnated wood part, process for impregnating wood parts, and use of same20 Aug 2026US 2026/0242704 A1
- Acetylated wood30 Jul 2026US 2026/0216912 A1YKK AP Inc.
- Process To Make Silicate Functionalized Engineered Wood Articles With Improved Properties9 Jul 2026US 2026/0192485 A1T2Earth Holdings LLC
Most cited
By later US patents
- Process for the preservation of wood63US 3,968,276 ADiversified Wood Products, Inc. · 1976
- Fire retarding composition and a method for impregnation of a combustible material58US 6,042,639 AFireguard Scandinavia AS · 2000
- Molten salt method of producing fire resistant wood articles52US 3,935,343 AUnited States Gypsum Company · 1976
- Closable bag and method and arrangement for aseptic filling thereof48US 4,731,978 AAlfa-Laval Food & Dairy Engineering AB · 1988
- Wood treatment process48US 6,274,199 B1Chemical Specialties, Inc. · 2001