E05F 3/12
Special devices controlling the circulation of the liquid
Official title: Special devices controlling the circulation of the liquid, e.g. valve arrangement ({E05F3/223 takes precedence}; valves per se F16K)
E05F3/12 (Special devices controlling the circulation of the liquid) appears on 156 US grants and 149 published applications in this corpus.
Search patents in E05F- Granted patents
- 156
- Published applications
- 149
- Assignees
- 82
- Inventors
- 232
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 3 | 4 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 5 |
| 2011 | 2 | 5 |
| 2012 | 2 | 6 |
| 2013 | 6 | 4 |
| 2014 | 7 | 8 |
| 2015 | 2 | 7 |
| 2016 | 7 | 5 |
| 2017 | 6 | 5 |
| 2018 | 5 | 8 |
| 2019 | 9 | 15 |
| 2020 | 8 | 9 |
| 2021 | 13 | 15 |
| 2022 | 10 | 5 |
| 2023 | 4 | 16 |
| 2024 | 8 | 9 |
| 2025 | 16 | 7 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adjustment screw indicator mechanism18 Aug 2026US 12,709,930 B2Schlage Lock Company LLC
- System for the controlled rotary movement of a door, a leaf or the like21 Jul 2026US 12,687,060 B2
- Hydraulic hinge for the controlled rotary movement of a door, a leaf or the like26 May 2026US 12,637,888 B2
- Refrigerator19 May 2026US 12,631,391 B2LG Electronics Inc.
- Wire rope system31 Mar 2026US 12,590,484 B2Scherdel Innotec Forschungs-Und Entwicklungs-GmbH
- Door closer13 Aug 2026US 2026/0234977 A1Dormakaba Deutschland GmbH
- Variable-speed buffer oil cylinder2 Jul 2026US 2026/0185585 A1Guangdong Zhaogao Metal Technology Co., Ltd.
- Door closer casings26 Feb 2026US 2026/0055650 A1Schlage Lock Company LLC
- Adjustment screw indicator mechanism31 Jul 2025US 2025/0243700 A1Schlage Lock Company LLC
- Shear thickening fluid based object control mechanism24 Jul 2025US 2025/0237287 A1Moshun, LLC
Most cited
By later US patents
- Totally enclosed door check51US 3,979,790 AVapor Corporation · 1976
- Door closer incorporating self-cleaning and temperature compensating flow control valve43US 4,573,238 ANewman-Tonks Engineering Limited · 1986
- Door closer delayed action speed control system41US 4,378,612 ASchlage Lock Company LLC · 1983
- Door closer41US 4,999,872 ADorma GmbH + Co. KG · 1991
- Door closer39US 4,064,589 ABuilders Brass Works · 1977