F15B 11/167
Using pilot pressure to sense the demand
Official title: {using pilot pressure to sense the demand}
F15B11/167 (Using pilot pressure to sense the demand) appears on 40 US grants and 38 published applications in this corpus.
Search patents in F15B- Granted patents
- 40
- Published applications
- 38
- Assignees
- 27
- Inventors
- 90
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 3 |
| 2004 | 3 | 2 |
| 2005 | 2 | 3 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 5 |
| 2015 | 0 | 5 |
| 2016 | 2 | 0 |
| 2017 | 7 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 6 |
| 2022 | 4 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Work machine30 Dec 2025US 12,509,858 B2Kobelco Construction Machinery Co., Ltd.
- Fluid pressure circuit6 May 2025US 12,292,061 B2Eagle Industry Co., Ltd.
- Work machine and control method8 Aug 2023US 11,719,335 B2Komatsu Ltd.
- Construction machine31 May 2022US 11,346,081 B2Hitachi Construction Machinery Co., Ltd.
- Flow control valve and hydraulic machine including the same29 Mar 2022US 11,286,962 B2Volvo Construction Equipment AB
- Directional control valve device30 Oct 2025US 2025/0334190 A1Nabtesco Corporation
- Working machine and method of controlling working machine11 Sep 2025US 2025/0283303 A1Kubota Corporation
- Fluid pressure circuit30 Jan 2025US 2025/0035132 A1Eagle Industry Co., Ltd.
- Work machine9 Jan 2025US 2025/0012051 A1Kobelco Construction Machinery Co., Ltd.
- Work machine and control method19 May 2022US 2022/0154738 A1Komatsu Ltd.
Most cited
By later US patents
- Hydraulic control circuit in a hydraulic excavator52US 5,970,709 AKabushiki Kaisha Kobe Seiko Sho · 1999
- Control device for hydraulically-operated equipment42US 6,308,516 B1Komatsu Ltd. · 2001
- Construction machinery30US 6,851,207 B2Kobelco Construction Machinery Co., Ltd. · 2005
- Hydraulic control system for working machine27US 7,392,653 B2Kobelco Construction Machinery Co., Ltd. · 2008
- Control device for working machine23US 6,981,371 B2Kobelco Construction Machinery Co., Ltd. · 2006