F16K 3/0245
Curtain gate valves
Official title: {Curtain gate valves}
F16K3/0245 (Curtain gate valves) appears on 19 US grants and 19 published applications in this corpus.
Search patents in F16K- Granted patents
- 19
- Published applications
- 19
- Assignees
- 19
- Inventors
- 54
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 2 |
| 2016 | 3 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 3 | 2 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gate valve with novel seal and sealing arrangement11 Aug 2026US 12,704,184 B2
- Space-saving multi-valve and method of operating a multi-valve6 Feb 2024US 11,892,088 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Selective powder dosing for an additively manufacturing system1 Mar 2022US 11,260,649 B2Raytheon Technologies Corporation
- Monolithic manifold with embedded valves16 Mar 2021US 10,947,822 B2Fmc Technologies Do Brasil Ltda
- Balanced stem and surface safety valve26 Jan 2021US 10,900,575 B2Baker Hughes Oilfield Operations LLC
- Gate Valve with Novel Seal and Sealing Arrangement3 Oct 2024US 2024/0328518 A1Edge Mechanical Design Inc.
- Vacuum valve for a vacuum conveying system25 Jan 2024US 2024/0026979 A1VAT Holding AG
- Method and apparatus for producing a gas curtain of purge gas in a slit valve tunnel14 Sep 2023US 2023/0287566 A1Siltronic AG
- Space-saving multi-valve and method of operating a multi-valve6 Apr 2023US 2023/0104346 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Balanced stem and surface safety valve3 Sep 2020US 2020/0278035 A1Baker Hughes Oilfield Operations LLC
Most cited
By later US patents
- Variable orifice valve21US 6,325,096 B1Stargaze Corporation · 2001
- Gate valve arrangement including multi-valve stem and seat assemblies11US 9,759,334 B2Vetco Gray Inc. · 2017
- Control valve with detachable descrete curtain valve assembly9US 7,051,994 B2Belimo Holding AG · 2006
- Non-welded hardface gate and seats9US 9,249,888 B2GE Oil & Gas Pressure Control LP · 2016
- Air passage changeover device having film screen5US 6,926,253 B2Denso Corporation · 2005