B27K 3/0221
Pore opening
Official title: {Pore opening (B27K3/0214 takes precedence)}
B27K3/0221 (Pore opening) appears on 26 US grants and 28 published applications in this corpus.
Search patents in B27K- Granted patents
- 26
- Published applications
- 28
- Assignees
- 26
- Inventors
- 73
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 2 |
| 2018 | 2 | 3 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 4 |
| 2022 | 2 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Method of treating wood materials14 May 2024US 11,981,047 B2Palonot Oy
- Selectively depolymerizing cellulosic materials for use as thermal and acoustic insulators29 Nov 2022US 11,512,427 B2DTE Materials Incorporated
- Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process22 Feb 2022US 11,254,026 B2
- Method for liquid treatment of a wood species6 Jul 2021US 11,052,567 B2Superwood A/S
- 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
- 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
- Method for modifying wood and products thereof28 May 2026US 2026/0145359 A1Rakauco Limited
- Self-flowing treatment of wood, bamboo, and other porous materials12 Mar 2026US 2026/0070255 A1University of North Texas
Most cited
By later US patents
- Process for the preservation of wood63US 3,968,276 ADiversified Wood Products, Inc. · 1976
- Aqueous media for the treatment of wood and wooden materials and a process for such treatment22US 4,496,613 AChemische Werke Huls Aktiengesellschaft · 1985
- Method for preservation treatment of wood15US 5,075,131 AFuyo Lumber Sales Co., Ltd. · 1991
- Method and composition for treating wood14US 5,395,656 A1995
- Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process10US 10,538,012 B22020