F01L 1/34403
Using helically teethed sleeve or gear moving axially between crankshaft and camshaft
Official title: {using helically teethed sleeve or gear moving axially between crankshaft and camshaft}
F01L1/34403 (Using helically teethed sleeve or gear moving axially between crankshaft and camshaft) appears on 331 US grants and 96 published applications in this corpus.
Search patents in F01L- Granted patents
- 331
- Published applications
- 96
- Assignees
- 79
- Inventors
- 425
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 23 | 0 |
| 1993 | 25 | 0 |
| 1994 | 17 | 0 |
| 1995 | 10 | 0 |
| 1996 | 18 | 0 |
| 1997 | 22 | 0 |
| 1998 | 28 | 0 |
| 1999 | 15 | 0 |
| 2000 | 14 | 0 |
| 2001 | 18 | 4 |
| 2002 | 14 | 11 |
| 2003 | 10 | 6 |
| 2004 | 7 | 5 |
| 2005 | 4 | 6 |
| 2006 | 2 | 3 |
| 2007 | 5 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 5 |
| 2010 | 2 | 10 |
| 2011 | 6 | 3 |
| 2012 | 5 | 2 |
| 2013 | 4 | 1 |
| 2014 | 3 | 1 |
| 2015 | 1 | 3 |
| 2016 | 3 | 7 |
| 2017 | 6 | 5 |
| 2018 | 4 | 6 |
| 2019 | 9 | 5 |
| 2020 | 5 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 2 | 3 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve opening-closing timing control device30 Jun 2026US 12,669,072 B2Aisin Corporation
- Systems and methods for backlash compensation in cam phasing systems18 Jun 2024US 12,012,877 B2HUSCO Automotive Holdings LLC
- System and method for variable valve timing4 Jun 2024US 12,000,314 B1
- Variable timing valve apparatus28 Mar 2023US 11,614,004 B2
- Valve timing control unit10 Jan 2023US 11,549,407 B2Aisin Corporation
- Valve opening-closing timing control device25 Sep 2025US 2025/0297560 A1Aisin Corporation
- Systems and Methods for Backlash Compensation in Cam Phasing Systems3 Aug 2023US 2023/0243281 A1HUSCO Automotive Holdings LLC
- Cam Phase Actuator Control Systems and Methods16 Feb 2023US 2023/0050408 A1
- Variable timing valve apparatus9 Feb 2023US 2023/0040266 A1
- Valve timing control unit13 Oct 2022US 2022/0325643 A1Aisin Corporation
Most cited
By later US patents
- Multidependent valve timing overlap control for the cylinders of an internal combustion engine71US 4,856,465 ARobert Bosch GmbH · 1989
- Valve timing control device for an internal combustion engine70US 6,109,225 AToyota Jidosha Kabushiki Kaisha · 2000
- Variable valve timing control device for an engine61US 5,469,818 AToyota Jidosha Kabushiki Kaisha · 1995
- System for operating internal combustion engine60US 5,622,144 ANissan Motor Co., Ltd. · 1997
- Valve timing control device and method for vehicle engine59US 6,341,584 B12002