B27L 1/025
Debarking in rotating drums
Official title: {Debarking in rotating drums}
B27L1/025 (Debarking in rotating drums) appears on 31 US grants and 6 published applications in this corpus.
Search patents in B27L- Granted patents
- 31
- Published applications
- 6
- Assignees
- 21
- Inventors
- 46
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 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.
Recent patents
- Debarking drum, method and system for debarking of wood17 Mar 2026US 12,576,552 B2Valmet Technologies Oy
- Processing apparatus of wood to be chipped13 Oct 2009US 7,600,545 B2Metso Paper, Inc.
- Log debarker with covered bark slots22 Jun 2004US 6,752,185 B1Metso Paper, Inc.
- Apparatus for debarking logs with movable debarking surface for varying rate of debarking17 Jun 2003US 6,578,609 B1Cae Wood Products G.P.
- Method for controlling a drum debarker15 Apr 2003US 6,546,979 B2Metso Paper, Inc.
- Debarking Drum, Method and System for Debarking of Wood6 Jun 2024US 2024/0181670 A1Valmet Technologies Oy
- Tree chipper29 Jan 2009US 2009/0026296 A1
- Processing apparatus of wood to be chipped7 Aug 2008US 2008/0185073 A1Metso Paper, Inc.
- Method for optimizing the debarking result of logs debarked in a debarking drum7 Dec 2006US 2006/0272745 A1
- Method of measuring the filling degree of filling in a debarking drum4 Mar 2004US 2004/0040624 A1
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
- Apparatus for debarking logs and cut timber10US 4,374,533 AMo och Domsjo Aktiebolag · 1983
- Procedure and apparatus for controlling a barking process10US 5,247,978 AKone Ov · 1993