F16H 61/444
By changing the number of pump or motor units in operation
Official title: by changing the number of pump or motor units in operation
F16H61/444 (By changing the number of pump or motor units in operation) appears on 91 US grants and 67 published applications in this corpus.
Search patents in F16H- Granted patents
- 91
- Published applications
- 67
- Assignees
- 47
- Inventors
- 145
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 2 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 2 | 5 |
| 2005 | 4 | 4 |
| 2006 | 3 | 2 |
| 2007 | 3 | 4 |
| 2008 | 4 | 3 |
| 2009 | 2 | 5 |
| 2010 | 3 | 5 |
| 2011 | 6 | 2 |
| 2012 | 3 | 0 |
| 2013 | 3 | 4 |
| 2014 | 2 | 2 |
| 2015 | 1 | 3 |
| 2016 | 2 | 3 |
| 2017 | 4 | 5 |
| 2018 | 2 | 4 |
| 2019 | 5 | 2 |
| 2020 | 4 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Start-up or disengagement method for an electro-hydraulic transmission11 Aug 2026US 12,704,175 B2Poclain Hydraulics Industrie
- Double-power-supply complex control device8 Oct 2024US 12,110,974 B2CH Creative Co., Ltd.
- Working machine24 Sep 2024US 12,098,524 B2Kubota Corporation
- Hydraulic fluid flow control5 Mar 2024US 11,920,615 B2Goodrich Corporation
- Working machine14 Nov 2023US 11,814,815 B2Kubota Corporation
- Electro-hydraulic drive system26 Jun 2025US 2025/0207338 A1Hamm AG
- Improved start-up or disengagement method for an electro-hydraulic transmission20 Feb 2025US 2025/0060033 A1Poclain Hydraulics Industrie
- Working machine25 Jan 2024US 2024/0026648 A1Kubota Corporation
- Hydraulic fluid flow control19 Oct 2023US 2023/0332627 A1Goodrich Corporation
- Double-power-supply complex control device11 Aug 2022US 2022/0252166 A1CH Creative Co., Ltd.
Most cited
By later US patents
- Four-wheel hydraulic drive system for working vehicle61US 6,189,641 B1Kanzaki Kokyukoki Mfg.Co., Ltd. · 2001
- Hydraulically driven vehicle45US 6,732,828 B12004
- Auxiliary hydrostatic drive system32US 4,244,184 AThe Paul Revere Corporation · 1981
- Hydraulic drive system having a plurality of prime movers29US 4,561,250 AHitachi Construction Machinery Co., Ltd. · 1985
- Hydraulic transmission28US 4,813,234 AMannesmann Rexroth GmbH · 1989