E02F 9/2292
Systems with two or more pumps
Official title: {Systems with two or more pumps}
E02F9/2292 (Systems with two or more pumps) appears on 1,301 US grants and 1,371 published applications in this corpus.
Search patents in E02F- Granted patents
- 1,301
- Published applications
- 1,371
- Assignees
- 199
- Inventors
- 1,819
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 10 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 5 | 0 |
| 1994 | 11 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 11 | 0 |
| 1999 | 17 | 0 |
| 2000 | 18 | 0 |
| 2001 | 20 | 3 |
| 2002 | 15 | 10 |
| 2003 | 19 | 19 |
| 2004 | 10 | 9 |
| 2005 | 14 | 15 |
| 2006 | 10 | 22 |
| 2007 | 12 | 22 |
| 2008 | 12 | 29 |
| 2009 | 26 | 37 |
| 2010 | 13 | 18 |
| 2011 | 25 | 26 |
| 2012 | 15 | 36 |
| 2013 | 21 | 71 |
| 2014 | 44 | 68 |
| 2015 | 54 | 81 |
| 2016 | 59 | 83 |
| 2017 | 80 | 82 |
| 2018 | 61 | 66 |
| 2019 | 85 | 62 |
| 2020 | 65 | 63 |
| 2021 | 75 | 106 |
| 2022 | 70 | 116 |
| 2023 | 65 | 77 |
| 2024 | 101 | 96 |
| 2025 | 91 | 87 |
| 2026 | 70 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Construction machine6 Oct 2026US 12,753,569 B2Hitachi Construction Machinery Co., Ltd.
- Adaptive eco mode6 Oct 2026US 12,753,573 B2Deere & Company
- Construction assist system for shovel6 Oct 2026US 12,753,577 B2Sumitomo Heavy Industries, Ltd.
- Electric work machine22 Sep 2026US 12,741,537 B2Yanmar Holdings Co., Ltd.
- Construction machine22 Sep 2026US 12,742,307 B2Hitachi Construction Machinery Co., Ltd.
- Work Machine8 Oct 2026US 2026/0308879 A1Hitachi Construction Machinery Co., Ltd.
- Construction machine8 Oct 2026US 2026/0308886 A1Kobelco Construction Machinery Co., Ltd.
- Hydraulic System8 Oct 2026US 2026/0309169 A1Caterpillar SARL
- Working machine control method, working machine control program, working machine control system, and working machine1 Oct 2026US 2026/0297902 A1Yanmar Holdings Co., Ltd.
- Working vehicle and method for manufacturing working vehicle24 Sep 2026US 2026/0286648 A1Takeuchi Mfg. Co., Ltd.
Most cited
By later US patents
- Three-parameter optical fiber sensor and system497US 4,986,671 ALuxtron Corporation · 1991
- Drive system for construction machinery and method of controlling hydraulic circuit means thereof111US 4,369,625 AHitachi Construction Machinery Co., Ltd. · 1983
- Remote radio operating system, and remote operating apparatus, mobile relay station and radio mobile working machine92US 6,778,097 B1Shin Caterpillar Mitsubishi Ltd. · 2004
- Construction equipment79US 6,725,581 B2Komatsu Ltd. · 2004
- Control system for load-sensing hydraulic drive circuit65US 4,967,557 AHitachi Construction Machinery Co., Ltd. · 1990