F16H 2045/021
Three chamber system, i.e. comprising a separated, closed chamber specially adapted for
Official title: {three chamber system, i.e. comprising a separated, closed chamber specially adapted for actuating a lock-up clutch}
F16H2045/021 (Three chamber system, i.e. comprising a separated, closed chamber specially adapted for) appears on 327 US grants and 314 published applications in this corpus.
Search patents in F16H- Granted patents
- 327
- Published applications
- 314
- Assignees
- 69
- Inventors
- 481
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 6 |
| 2002 | 8 | 6 |
| 2003 | 5 | 3 |
| 2004 | 7 | 10 |
| 2005 | 5 | 8 |
| 2006 | 9 | 4 |
| 2007 | 4 | 10 |
| 2008 | 2 | 18 |
| 2009 | 3 | 20 |
| 2010 | 6 | 11 |
| 2011 | 9 | 13 |
| 2012 | 15 | 15 |
| 2013 | 12 | 21 |
| 2014 | 16 | 12 |
| 2015 | 18 | 11 |
| 2016 | 17 | 14 |
| 2017 | 15 | 15 |
| 2018 | 14 | 19 |
| 2019 | 14 | 13 |
| 2020 | 12 | 20 |
| 2021 | 21 | 21 |
| 2022 | 30 | 26 |
| 2023 | 28 | 8 |
| 2024 | 9 | 6 |
| 2025 | 8 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Torque transmission device14 Apr 2026US 12,601,388 B2ZF Friedrichshafen AG
- Hydraulic circuit27 Jan 2026US 12,535,088 B2JATCO Ltd
- Power transmission device16 Dec 2025US 12,498,040 B2Exedy Corporation
- Turbine hub of a torque converter23 Sep 2025US 12,422,030 B1Schaeffler Technologies AG & Co. KG
- Lock-up clutch having radial cooling channel and torque converter using the same10 Jun 2025US 12,326,183 B2Valeo Kapec Co., Ltd.
- Torque converter2 Jul 2026US 2026/0185591 A1Circle D Specialties, LLC
- Power transmission device24 Jul 2025US 2025/0237306 A1Exedy Corporation
- Hydraulic circuit29 May 2025US 2025/0172163 A1JATCO Ltd
- Torque converter having dam and compensation reservoir2 Jan 2025US 2025/0003473 A1Schaeffler Technologies AG & Co. KG
- Assembly with riveted components5 Dec 2024US 2024/0401681 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Vehicle drive train74US 6,258,001 B1Aisin Aw Co., Ltd. · 2001
- Torque converter having a lockup clutch45US 5,964,329 AExedy Corporation · 1999
- Force transmitting apparatus41US 6,244,401 B1LuK Getriebe-Systeme GmbH · 2001
- Force transmission device with a rotational speed adaptive damper and method for improving the damping properties31US 8,161,740 B2Schaeffler Technologies AG & Co. KG · 2012
- Torque converter disconnect and bypass clutch structure for automatic mechanical transmission30US 4,784,019 AEaton Corporation · 1988