F01L 1/022
Chain drive
Official title: {Chain drive}
F01L1/022 (Chain drive) appears on 871 US grants and 753 published applications in this corpus.
Search patents in F01L- Granted patents
- 871
- Published applications
- 753
- Assignees
- 170
- Inventors
- 1,303
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 8 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 13 | 0 |
| 1996 | 12 | 0 |
| 1997 | 12 | 0 |
| 1998 | 12 | 0 |
| 1999 | 18 | 0 |
| 2000 | 13 | 0 |
| 2001 | 24 | 15 |
| 2002 | 28 | 29 |
| 2003 | 48 | 61 |
| 2004 | 52 | 75 |
| 2005 | 77 | 96 |
| 2006 | 60 | 59 |
| 2007 | 55 | 68 |
| 2008 | 41 | 46 |
| 2009 | 35 | 53 |
| 2010 | 33 | 37 |
| 2011 | 28 | 21 |
| 2012 | 31 | 10 |
| 2013 | 27 | 9 |
| 2014 | 8 | 9 |
| 2015 | 8 | 9 |
| 2016 | 6 | 7 |
| 2017 | 18 | 25 |
| 2018 | 17 | 17 |
| 2019 | 22 | 17 |
| 2020 | 15 | 17 |
| 2021 | 9 | 13 |
| 2022 | 17 | 33 |
| 2023 | 24 | 8 |
| 2024 | 19 | 15 |
| 2025 | 5 | 1 |
| 2026 | 8 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Engine assembly oil management14 Jul 2026US 12,680,519 B2Arctic Cat Inc.
- Internal combustion engine2 Jun 2026US 12,644,398 B2Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine having common engine parts and method of forming same21 Apr 2026US 12,607,144 B2ASF Technologies (Australia) Pty Ltd
- Variable camshaft timing assembly with deformable extension17 Mar 2026US 12,577,894 B2BorgWarner Inc.
- Oil pan for internal combustion engine3 Mar 2026US 12,565,852 B2Arctic Cat Inc.
- Variable valve timing mechanism23 Jul 2026US 2026/0210276 A1Subaru Corporation
- Oil pan for internal combustion engine9 Jul 2026US 2026/0194004 A1Arctic Cat Inc.
- Interchangeable engine assembly18 Jun 2026US 2026/0168462 A1Arctic Cat Inc.
- Internal combustion engine31 Jul 2025US 2025/0243791 A1Toyota Jidosha Kabushiki Kaisha
- Engine valve configuration28 Nov 2024US 2024/0392703 A1
Most cited
By later US patents
- Dual-acting apparatus for variable valve timing and the like87US 5,417,186 AClemson University · 1995
- Hydraulic timing chain tensioner assembly69US 6,609,987 B1General Motors Corporation · 2003
- Guide rail for drive chains60US 4,832,664 ADr. Ing. h,c.F. Porsche Aktiengesellschaft · 1989
- Detachable timing gear cassette unit for an explosion or internal combustion engine50US 4,607,601 ACompagnie des Transmissions Mechaniques Sedis · 1986
- Hydraulic tensioner50US 6,383,103 B1Tsubakimoto Chain Co. · 2002