F16H 61/452
Selectively controlling multiple pumps or motors
Official title: Selectively controlling multiple pumps or motors, e.g. switching between series or parallel
F16H61/452 (Selectively controlling multiple pumps or motors) appears on 77 US grants and 48 published applications in this corpus.
Search patents in F16H- Granted patents
- 77
- Published applications
- 48
- Assignees
- 53
- Inventors
- 114
- Latest grant
- 21 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 7 | 2 |
| 2003 | 2 | 0 |
| 2004 | 2 | 7 |
| 2005 | 1 | 2 |
| 2006 | 3 | 4 |
| 2007 | 3 | 5 |
| 2008 | 4 | 4 |
| 2009 | 5 | 5 |
| 2010 | 4 | 1 |
| 2011 | 2 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 2 | 2 |
| 2015 | 0 | 1 |
| 2016 | 2 | 3 |
| 2017 | 1 | 0 |
| 2018 | 3 | 3 |
| 2019 | 2 | 0 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Multi-wheel drive system42US 4,570,741 AIngersoll-Rand Company · 1986
- Transmission apparatus for a vehicle having at least two drivable axles34US 6,230,829 B1Poclain Hydraulics Industrie · 2001
- Dual hydraulic motor drive system32US 5,518,461 AMannesmann Aktiengesellschaft · 1996
- Opposing pump/motors32US 7,374,005 B2The United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 2008
- Dual-path single-pump hydrostatic drive for mower27US 6,662,895 B1Textron Inc. · 2003