B27L 1/02
Debarking or removing vestiges of branches from trees or logs: by rubbing
Official title: by rubbing the trunks against each other (B27L1/04 takes precedence); Equipment for wet practice {(B27L1/14 takes precedence)}
B27L1/02 (Debarking or removing vestiges of branches from trees or logs: by rubbing) appears on 49 US grants and 20 published applications in this corpus.
Search patents in B27L- Granted patents
- 49
- Published applications
- 20
- Assignees
- 30
- Inventors
- 71
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 5 |
| 2003 | 7 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Debarking drum, method and system for debarking of wood17 Mar 2026US 12,576,552 B2Valmet Technologies Oy
- Batch-style bottom-discharge rotary debarker13 Mar 2018US 9,914,241 B2Acrowood Corporation
- Debarking mechanism and method19 Jun 2012US 8,201,599 B2Andritz Inc.
- Debarking mechanism20 Sep 2011US 8,020,594 B2Andritz Inc.
- Processing apparatus of wood to be chipped13 Oct 2009US 7,600,545 B2Metso Paper, Inc.
- Debarking Drum, Method and System for Debarking of Wood6 Jun 2024US 2024/0181670 A1Valmet Technologies Oy
- Rotary log debarker with tilting system30 Mar 2017US 2017/0087740 A1Les Aciers J.P. Inc.
- Batch-style bottom-discharge rotary debarker28 Jul 2016US 2016/0214271 A1Acrowood Corporation
- Debarking mechanism and method2 Feb 2012US 2012/0024426 A1Andritz Inc.
- Debarking mechanism18 Jun 2009US 2009/0151817 A1Andritz Inc.
Most cited
By later US patents
- Barking drum and method12US 4,369,823 AAktiebolaget Karkstads Mekaniska Werkstad · 1983
- Barking drum and method11US 4,445,558 AAB Karlstads Mekaniska Werkstad · 1984
- Wear means for drum barker11US 4,583,575 ASkega AB · 1986
- Method of and apparatus for controlling the flow of materials from a rotating drum10US 4,173,239 AChicago Bridge & Iron Company · 1979
- Apparatus for debarking logs and cut timber10US 4,374,533 AMo och Domsjo Aktiebolag · 1983