A47J 31/461
Valves
Official title: {Valves, e.g. drain valves}
A47J31/461 (Valves) appears on 265 US grants and 450 published applications in this corpus.
Search patents in A47J- Granted patents
- 265
- Published applications
- 450
- Assignees
- 217
- Inventors
- 839
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 4 | 5 |
| 2004 | 4 | 6 |
| 2005 | 1 | 4 |
| 2006 | 4 | 2 |
| 2007 | 4 | 3 |
| 2008 | 1 | 5 |
| 2009 | 1 | 3 |
| 2010 | 3 | 4 |
| 2011 | 2 | 6 |
| 2012 | 1 | 6 |
| 2013 | 6 | 10 |
| 2014 | 6 | 10 |
| 2015 | 10 | 3 |
| 2016 | 8 | 4 |
| 2017 | 5 | 12 |
| 2018 | 2 | 18 |
| 2019 | 12 | 25 |
| 2020 | 13 | 44 |
| 2021 | 21 | 44 |
| 2022 | 33 | 54 |
| 2023 | 20 | 51 |
| 2024 | 30 | 41 |
| 2025 | 22 | 52 |
| 2026 | 23 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve device1 Sep 2026US 12,721,468 B2De' Longhi Appliances S,R. L. Con Unico Socio
- Beverage preparation machine and cooling module25 Aug 2026US 12,715,751 B2Koninklijke Douwe Egberts B. V.
- Drinking recipients with flow regulation means of minimal construction, systems and processes with said drinking recipients11 Aug 2026US 12,702,247 B2Novadelta - ComéRcio E IndúStria De CaféS, Lda
- Brewing unit28 Jul 2026US 12,690,714 B2Luigi Lavazza S.P.A.
- Small manual coffee maker14 Jul 2026US 12,677,978 B2Hua Ku (Shunde) Tech Electric Co., Ltd
- Brewing unit8 Oct 2026US 2026/0305864 A1Luigi Lavazza S.P.A.
- Beverage making assembly24 Sep 2026US 2026/0283393 A1HCL Technologies Limited
- Beverage making assembly24 Sep 2026US 2026/0283394 A1HCL Technologies Limited
- Coffee machine with milk frothing system17 Sep 2026US 2026/0272210 A1Simonelli Group S.P.A.
- Coffee making system27 Aug 2026US 2026/0248322 A1Maxi (Beijing) International Brand Management Co., Ltd.
Most cited
By later US patents
- Fluid delivery system for generating pressure pulses to make beverages99US 6,405,637 B1Houseware Technology Group · 2002
- Beverage brewing apparatus73US 5,778,765 ABraun GmbH · 1998
- Liquid concentrate/extract beverage dispenser with replaceable concentrate/extract cartridge55US 8,210,396 B2Intelligent Coffee Company, LLC · 2012
- Apparatus and process for extracting espresso coffee53US 5,127,318 ASelsys Corporation · 1992
- Coffee maker51US 5,829,340 A1998