B27B 17/025
Composite guide bars
Official title: {Composite guide bars, e.g. laminated, multisectioned; Guide bars of diverse material}
B27B17/025 (Composite guide bars) appears on 102 US grants and 48 published applications in this corpus.
Search patents in B27B- Granted patents
- 102
- Published applications
- 48
- Assignees
- 28
- Inventors
- 170
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 8 |
| 2019 | 4 | 3 |
| 2020 | 3 | 3 |
| 2021 | 3 | 1 |
| 2022 | 2 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 3 |
| 2025 | 2 | 3 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Stabilized cutting tool assemblies28 Oct 2025US 12,454,017 B2Fisher Controls International LLC
- Methods for production of a guide bar for a chainsaw and a guide bar for a chainsaw14 Jan 2025US 12,194,653 B2Husqvarna AB
- Targeted oil delivery for chain saw bars12 Mar 2024US 11,926,070 B2Oregon Tool, Inc.
- Electric saw guide plate capable of recycling lubricating oil13 Feb 2024US 11,897,160 B1Hangzhou Excelsior & Sharp Garden Tools Co., Ltd.
- Stabilized cutting tool assemblies5 Dec 2023US 11,833,598 B2Fisher Controls International LLC
- Saw blade arrangement with lubricant supply channel and methods for manufacturing and using such a saw blade30 Apr 2026US 2026/0114389 A1Jps Teknik AB
- A method for production of a guide bar for a chainsaw, a guide bar for a chainsaw, and a guide bar blank23 Apr 2026US 2026/0109072 A1Husqvarna AB
- Guide bar and chain saw5 Mar 2026US 2026/0061654 A1Yamabiko Corporation
- Method For Manufacturing Guide Bar, Guide Bar, And Working Machine25 Dec 2025US 2025/0387941 A1Yamabiko Corporation
- Chainsaw guide bar4 Dec 2025US 2025/0367847 A1Oregon Tool, Inc.
Most cited
By later US patents
- Chain saw components and system for cutting masonry and the like31US 4,920,947 ABlount, Inc. · 1990
- Selectable spray pattern chain saw bar system30US 5,143,131 ABlount, Inc. · 1992
- Chain saw tensioning mechanism30US 5,174,029 AJT Investments · 1992
- Chain saw guide bar25US 5,035,058 ASuehiro Seiko Kabushiki Kaisha · 1991
- Guide bar for a chain saw23US 5,025,561 ASugihara Trading Co., Ltd. · 1991