F15B 2211/321
Mechanically
Official title: mechanically
F15B2211/321 (Mechanically) appears on 312 US grants and 188 published applications in this corpus.
Search patents in F15B- Granted patents
- 312
- Published applications
- 188
- Assignees
- 175
- Inventors
- 532
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 1 |
| 2002 | 5 | 4 |
| 2003 | 4 | 8 |
| 2004 | 5 | 9 |
| 2005 | 12 | 7 |
| 2006 | 5 | 6 |
| 2007 | 1 | 4 |
| 2008 | 4 | 6 |
| 2009 | 5 | 8 |
| 2010 | 6 | 3 |
| 2011 | 5 | 3 |
| 2012 | 2 | 1 |
| 2013 | 4 | 3 |
| 2014 | 2 | 3 |
| 2015 | 5 | 8 |
| 2016 | 3 | 10 |
| 2017 | 6 | 8 |
| 2018 | 6 | 2 |
| 2019 | 10 | 11 |
| 2020 | 17 | 26 |
| 2021 | 14 | 13 |
| 2022 | 13 | 8 |
| 2023 | 9 | 11 |
| 2024 | 12 | 13 |
| 2025 | 8 | 8 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic mobile cart for produce harvesting18 Aug 2026US 12,709,152 B2
- Gas circuit control system of pneumatic cardiopulmonary resuscitation pressing device5 May 2026US 12,616,638 B2Sunlife Science (Suzhou) Inc.
- Hydraulic fluid release valve assemblies21 Apr 2026US 12,607,271 B2Roadtek Enterprises Inc.
- Synchronized hybrid clamp force controller for lift truck attachment17 Mar 2026US 12,577,091 B2Cascade Corporation
- Residual pressure exhaust air circuit and residual pressure exhaust valve10 Feb 2026US 12,546,413 B2SMC Corporation
- Remote travel feedback systems and related methods9 Jul 2026US 2026/0194079 A1Fisher Controls International LLC
- Servo valve11 Jun 2026US 2026/0160345 A1Microtecnica S.R.L.
- Working machine7 May 2026US 2026/0125877 A1Volvo Construction Equipment AB
- Gangway having self-raising assembly26 Feb 2026US 2026/0054947 A1Safe Rack LLC
- Safety valve device25 Dec 2025US 2025/0389287 A1Festo AG & Co.
Most cited
By later US patents
- Hydraulic system providing down force on a work implement109US 6,460,623 B1Caterpillar Inc. · 2002
- Dual-pump, flow-isolated hydraulic circuit for an agricultural tractor60US 5,918,558 ACase Corporation · 1999
- Fast response load sense control system41US 4,986,071 AKomatsu Dresser Company · 1991
- Pressure compensating hydraulic control system41US 5,579,642 AHUSCO International, Inc. · 1996
- Load sensing steering system with dual power source39US 4,044,786 AEaton Corporation · 1977