F16H 61/0206
Layout of electro-hydraulic control circuits
Official title: {Layout of electro-hydraulic control circuits, e.g. arrangement of valves}
F16H61/0206 (Layout of electro-hydraulic control circuits) appears on 917 US grants and 574 published applications in this corpus.
Search patents in F16H- Granted patents
- 917
- Published applications
- 574
- Assignees
- 178
- Inventors
- 1,325
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 17 | 0 |
| 1990 | 12 | 0 |
| 1991 | 17 | 0 |
| 1992 | 17 | 0 |
| 1993 | 19 | 0 |
| 1994 | 7 | 0 |
| 1995 | 22 | 0 |
| 1996 | 31 | 0 |
| 1997 | 38 | 0 |
| 1998 | 29 | 0 |
| 1999 | 30 | 0 |
| 2000 | 19 | 0 |
| 2001 | 21 | 8 |
| 2002 | 29 | 20 |
| 2003 | 18 | 18 |
| 2004 | 22 | 17 |
| 2005 | 17 | 14 |
| 2006 | 8 | 25 |
| 2007 | 14 | 18 |
| 2008 | 15 | 20 |
| 2009 | 11 | 31 |
| 2010 | 15 | 26 |
| 2011 | 25 | 34 |
| 2012 | 27 | 29 |
| 2013 | 43 | 33 |
| 2014 | 29 | 23 |
| 2015 | 27 | 31 |
| 2016 | 21 | 25 |
| 2017 | 36 | 28 |
| 2018 | 29 | 31 |
| 2019 | 30 | 38 |
| 2020 | 40 | 27 |
| 2021 | 22 | 22 |
| 2022 | 17 | 12 |
| 2023 | 17 | 26 |
| 2024 | 29 | 8 |
| 2025 | 12 | 4 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic control apparatus of automatic transmission, and vehicle14 Jul 2026US 12,680,608 B2Isuzu Motors Limited
- Center casting and governor for automatic transmission clutch23 Jun 2026US 12,663,075 B2Goerend Transmissions, Inc.
- Selective fluid delivery unit for a power transmission20 Jan 2026US 12,529,400 B2
- Electro-hydraulic circuits incorporating dual pumps for improved clutch fill times, transmissions and vehicles incorporating the same, and methods associated therewith6 Jan 2026US 12,516,730 B1Allison Transmission, Inc.
- Methods and systems for improving the operation of transmissions for motor vehicles30 Dec 2025US 12,510,150 B2Transgo, LLC
- Hydraulic system, hybrid transmission, and vehicle10 Sep 2026US 2026/0266342 A1Chery Automobile Co., Ltd.
- Method for actuating a parking lock device2 Jul 2026US 2026/0185608 A1Schaeffler Technologies AG & Co. KG
- Electro-hydraulic circuits incorporating dual pumps for improved clutch fill times, transmissions and vehicles incorporating the same, and methods associated therewith9 Apr 2026US 2026/0098578 A1Allison Transmission, Inc.
- Electrified axle12 Mar 2026US 2026/0071671 A1Allison Transmission, Inc.
- Center casting and governor for automatic transmission clutch26 Feb 2026US 2026/0055810 A1Goerend Transmissions, Inc.
Most cited
By later US patents
- Apparatus and method of neutral start control of a power transmission1,495US 5,809,441 ACase Corporation · 1998
- Hybrid vehicle drive system having clutch between engine and synthesizing/distributing mechanism which is operatively connected to motor/generator235US 5,856,709 AToyota Jidosha Kabushiki Kaisha · 1999
- Electronically-controlled, adaptive automatic transmission system166US 4,875,391 AChrysler Motors Corporation · 1989
- Six-speed powertrain and hydraulic control system for automatic transmission97US 6,840,885 B2Hyundai Motor Company · 2005
- Hybrid vehicle drive system including controllable device between engine and electric motor and vehicle drive wheels, and apparatus for controlling the device depending upon selected operation mode of the system87US 6,081,042 AToyota Jidosha Kabushiki Kaisha · 2000