A47G 2400/027
Non-return valves
A47G2400/027 (Non-return valves) appears on 27 US grants and 46 published applications in this corpus.
Search patents in A47G- Granted patents
- 27
- Published applications
- 46
- Assignees
- 18
- Inventors
- 56
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 3 |
| 2004 | 0 | 4 |
| 2005 | 1 | 7 |
| 2006 | 1 | 8 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 1 |
| 2011 | 4 | 2 |
| 2012 | 3 | 4 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pre-filled drinking straw with a cross-slit valve closure on both ends23 Sep 2025US 12,419,451 B2Alterno Labs d.o.o.
- Drinking vessel having a drinking valve17 Nov 2020US 10,835,065 B2MAPA GmbH
- Check valve drinking device12 Jul 2016US 9,386,870 B2
- Drinking straw for dispensing substances with one-way valve13 Jan 2015US 8,931,634 B2
- Temperature sensitive valve having shape memory actuator15 Apr 2014US 8,695,889 B2Omnitek Partners LLC
- Methods and apparatus for adaptable feeding systems with graduated connectors accommodating varying sizes of food containers9 Jan 2025US 2025/0009154 A1Papeltec Overseas, Inc.
- Hydration Bite Actuated Drinking Straw2 May 2024US 2024/0138604 A1
- Shot straws and methods for making and using the same12 Jan 2023US 2023/0009089 A1TakeShots LLC
- Hydration delivery tube with check valve18 Feb 2021US 2021/0045557 A1
- Pre-filled drinking straw with a cross-slit valve closure on both ends16 Apr 2020US 2020/0113363 A1Sisteks D.O.O.
Most cited
By later US patents