B27B 17/12
Lubricating devices specially designed for chain saws
B27B17/12 (Lubricating devices specially designed for chain saws) appears on 133 US grants and 134 published applications in this corpus.
Search patents in B27B- Granted patents
- 133
- Published applications
- 134
- Assignees
- 65
- Inventors
- 322
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 12 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 6 |
| 2014 | 2 | 2 |
| 2015 | 3 | 5 |
| 2016 | 3 | 5 |
| 2017 | 4 | 8 |
| 2018 | 9 | 9 |
| 2019 | 4 | 7 |
| 2020 | 4 | 7 |
| 2021 | 8 | 4 |
| 2022 | 5 | 6 |
| 2023 | 2 | 10 |
| 2024 | 8 | 13 |
| 2025 | 4 | 12 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chainsaw and lubrication system for chainsaw guide bar28 Jul 2026US 12,691,603 B2Techtronic Cordless GP
- Chain saw30 Jun 2026US 12,667,992 B2Nanjing Chervon Industry Co., Ltd.
- Chainsaw and methods for determining and releasing a jammed state of the chainsaw2 Jun 2026US 12,643,256 B2Nanjing Chervon Industry Co., Ltd.
- Container, cover and chainsaw12 May 2026US 12,623,369 B2Greenworks (Jiangsu) Co., Ltd.
- Power tool5 May 2026US 12,617,118 B2Greenworks (Jiangsu) Co., Ltd.
- Hand-Held Processing Device27 Aug 2026US 2026/0249441 A1Andreas Stihl AG & CO.KG
- Container, cover and chainsaw27 Aug 2026US 2026/0249511 A1Greenworks (Jiangsu) Co., Ltd.
- Chainsaw with oil pump30 Jul 2026US 2026/0216909 A1Black & Decker Inc.
- Handheld power tool30 Jul 2026US 2026/0216910 A1Husqvarna AB
- Handheld cutting tool30 Jul 2026US 2026/0216911 A1Nanjing Chervon Industry Co., Ltd.
Most cited
By later US patents
- Oil supply structure of chain saw46US 4,819,332 ASugihara Rinki Co., Ltd. · 1989
- Pruning cutter39US 5,718,050 ATechnic Tool Corporation · 1998
- Tree harvesting apparatus37US 5,709,254 A1998
- Motor-driven chain saw having a lubricating oil pump33US 5,184,403 A1993
- Chain saw bar fluid passage system32US 5,050,303 ABlount, Inc. · 1991