F16H 61/4026
Control of low pressure
F16H61/4026 (Control of low pressure) appears on 33 US grants and 29 published applications in this corpus.
Search patents in F16H- Granted patents
- 33
- Published applications
- 29
- Assignees
- 27
- Inventors
- 63
- Latest grant
- 3 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 1 |
| 2007 | 2 | 3 |
| 2008 | 0 | 0 |
| 2009 | 2 | 3 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 5 |
| 2016 | 5 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 4 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Traveling hydraulic stepless transmission3 Aug 2021US 11,079,014 B2Kanzaki Kokyukoki Mfg.Co., Ltd.
- Device and method for controlling a hydraulic machine10 Nov 2020US 10,830,348 B2Danfoss Power Solutions GmbH & Co. OHG
- Hydrostatic drive13 Oct 2020US 10,801,616 B2Hydac Systems & Services GmbH
- Hydrostatic drive having a closed circuit and method for operating the drive9 Jun 2020US 10,677,353 B2Thomas Magnete GmbH
- Hydraulic system for maintaining minimum low side pressure of closed circuit hydraulic system4 Feb 2020US 10,550,933 B2Danfoss Power Solutions Inc.
- Hydraulic valve block and hydraulic unit for closed circuit applications28 Dec 2023US 2023/0417323 A1
- Hydraulic circuit architecture with enhanced operation efficency29 Sep 2022US 2022/0307595 A1
- Traveling hydraulic stepless transmission2 Apr 2020US 2020/0103011 A1Kanzaki Kokyukoki Mfg.Co., Ltd.
- Hydrostatic drive having a closed circuit and method for operating the drive6 Jun 2019US 2019/0170246 A1Thomas Magnete GmbH
- Hydraulic system for maintaining minimum low side pressure of closed circuit hydraulic system11 Oct 2018US 2018/0291797 A1Danfoss Power Solutions Inc.
Most cited
By later US patents
- Hydrostatic transmission and power train for vehicle33US 6,601,474 B2Kanzaki Kokyukoki Mfg.Co., Ltd. · 2003
- Hydrostatic continuously variable transmission22US 5,412,948 AHonda Giken Kogyo Kabushiki Kaisha · 1995
- Speed changing device for hydraulic driving apparatus and speed change control method thereof20US 6,182,448 B2Komatsu Ltd. · 2001
- Hydraulic speed change gear having an automatic pressure control device18US 4,087,969 AHonda Giken Kogyo Kabushiki Kaisha · 1978
- Hydraulic pressure system14US 4,779,417 AShimadzu Corporation, Sanjo Factory · 1988