F16H 61/44
With more than one pump or motor in operation
Official title: with more than one pump or motor in operation
F16H61/44 (With more than one pump or motor in operation) appears on 452 US grants and 341 published applications in this corpus.
Search patents in F16H- Granted patents
- 452
- Published applications
- 341
- Assignees
- 186
- Inventors
- 711
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 3 |
| 2002 | 13 | 7 |
| 2003 | 8 | 6 |
| 2004 | 8 | 15 |
| 2005 | 7 | 11 |
| 2006 | 11 | 14 |
| 2007 | 12 | 20 |
| 2008 | 16 | 21 |
| 2009 | 12 | 18 |
| 2010 | 14 | 13 |
| 2011 | 14 | 7 |
| 2012 | 13 | 12 |
| 2013 | 18 | 16 |
| 2014 | 12 | 14 |
| 2015 | 8 | 18 |
| 2016 | 18 | 20 |
| 2017 | 17 | 16 |
| 2018 | 13 | 14 |
| 2019 | 18 | 13 |
| 2020 | 22 | 20 |
| 2021 | 15 | 15 |
| 2022 | 17 | 17 |
| 2023 | 10 | 14 |
| 2024 | 13 | 7 |
| 2025 | 11 | 5 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Open hydraulic assistance system25 Aug 2026US 12,716,489 B2Poclain Hydraulics Industrie
- System for providing rotary power to implements of machines11 Aug 2026US 12,702,097 B2Caterpillar Inc.
- Start-up or disengagement method for an electro-hydraulic transmission11 Aug 2026US 12,704,175 B2Poclain Hydraulics Industrie
- Working machine27 Jan 2026US 12,534,880 B2Kubota Corporation
- Working machine13 Jan 2026US 12,523,292 B2Kubota Corporation
- Work machine13 Aug 2026US 2026/0234906 A1Komatsu Ltd.
- Hydraulic drive system25 Jun 2026US 2026/0177083 A1Hamm AG
- Drive Device21 May 2026US 2026/0139737 A1Hydac Technology GmbH
- Working machine19 Mar 2026US 2026/0078819 A1Kubota Corporation
- Special underground construction device and method for operation of a special underground construction device8 Jan 2026US 2026/0009293 A1ABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
Most cited
By later US patents
- Hydraulic hybrid vehicle107US 6,719,080 B1The United States of America as represented by the Administrator of the Enviromental Protection Agency · 2004
- Dual pump apparatus comprising dual drive shafts and auxiliary pump78US 6,672,843 B1Hydro-Gear Limited Partnership · 2004
- Continuously smooth transmission75US 5,887,674 AThe United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 1999
- Hydraulic drive system for a vehicle74US 6,119,802 AAnser, Inc. · 2000
- Four-wheel hydraulic drive system for working vehicle61US 6,189,641 B1Kanzaki Kokyukoki Mfg.Co., Ltd. · 2001