F01L 2001/0475
Hollow camshafts
Official title: {Hollow camshafts}
F01L2001/0475 (Hollow camshafts) appears on 183 US grants and 180 published applications in this corpus.
Search patents in F01L- Granted patents
- 183
- Published applications
- 180
- Assignees
- 80
- Inventors
- 397
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 3 |
| 2003 | 3 | 4 |
| 2004 | 2 | 2 |
| 2005 | 2 | 5 |
| 2006 | 2 | 1 |
| 2007 | 5 | 8 |
| 2008 | 1 | 9 |
| 2009 | 3 | 7 |
| 2010 | 2 | 8 |
| 2011 | 8 | 12 |
| 2012 | 4 | 11 |
| 2013 | 8 | 9 |
| 2014 | 13 | 8 |
| 2015 | 8 | 7 |
| 2016 | 9 | 13 |
| 2017 | 5 | 22 |
| 2018 | 18 | 11 |
| 2019 | 14 | 12 |
| 2020 | 15 | 10 |
| 2021 | 3 | 5 |
| 2022 | 6 | 6 |
| 2023 | 4 | 1 |
| 2024 | 6 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Internal combustion engine24 Dec 2024US 12,173,677 B2Kawasaki Motors, Ltd.
- Mechanically timed cylinder deactivation system24 Sep 2024US 12,098,664 B2Cummins Inc.
- Bypass oil supply for an oil volume accumulator of a hydraulic camshaft phaser6 Aug 2024US 12,055,073 B2Schaeffler Technologies AG & Co. KG
- Rocker arm assemblies9 Jul 2024US 12,031,459 B2Eaton Intelligent Power Limited
- Electric actuator23 Apr 2024US 11,965,437 B2Ntn Corporation
- Camshaft8 Oct 2026US 2026/0309059 A1Subaru Corporation
- Camshaft mounting structure9 Jul 2026US 2026/0193996 A1Toyota Jidosha Kabushiki Kaisha
- Cylinder head structure for internal combustion engine25 Jun 2026US 2026/0176988 A1
- Internal combustion engine27 Jun 2024US 2024/0209824 A1Kawasaki Motors, Ltd.
- Bypass oil supply for an oil volume accumulator of a hydraulic camshaft phaser25 Jan 2024US 2024/0026804 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Process for producing built-up camshafts51US 4,660,269 AMusashi Seimitsu Kogyo Kabushiki Kaisha · 1987
- Cam shaft and method of manufacture40US 4,644,912 ANippon Piston Ring Co., Ltd. · 1987
- Mechanical element having a shaft pressure-fitted into an engaging member and its manufacturing method40US 5,272,930 ANippon Piston Ring Co., Ltd. · 1993
- Variable valve timing mechanism for engine38US 6,035,817 AYamaha Hatsudoki Kabushiki Kaisha · 2000
- Intake and exhaust control apparatus for internal combustion engines37US 5,133,310 AMazda Motor Corporation · 1992