A47J 31/30
With hot water under steam pressure
Official title: with hot water under steam pressure
A47J31/30 (With hot water under steam pressure) appears on 115 US grants and 122 published applications in this corpus.
Search patents in A47J- Granted patents
- 115
- Published applications
- 122
- Assignees
- 85
- Inventors
- 207
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 1 |
| 2004 | 3 | 5 |
| 2005 | 3 | 13 |
| 2006 | 2 | 3 |
| 2007 | 1 | 3 |
| 2008 | 2 | 8 |
| 2009 | 1 | 5 |
| 2010 | 5 | 2 |
| 2011 | 1 | 4 |
| 2012 | 1 | 5 |
| 2013 | 1 | 3 |
| 2014 | 3 | 3 |
| 2015 | 3 | 4 |
| 2016 | 4 | 3 |
| 2017 | 3 | 8 |
| 2018 | 5 | 8 |
| 2019 | 10 | 5 |
| 2020 | 4 | 6 |
| 2021 | 3 | 3 |
| 2022 | 2 | 7 |
| 2023 | 4 | 4 |
| 2024 | 9 | 7 |
| 2025 | 0 | 7 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coffee maker with foaming device10 Mar 2026US 12,569,086 B2Bialetti Industrie S. p. A.
- Coffee-making apparatus and method13 Jan 2026US 12,520,962 B2Giocoguado Ltd.
- Controlled system and method for brewing infused beverages26 Nov 2024US 12,150,585 B2
- Espresso coffee machine with adjustment of the dispensing pressure and method for adjusting the dispensing pressure of an espresso coffee machine22 Oct 2024US 12,121,175 B2La Marzocco S.R.L.
- Coffee machine17 Sep 2024US 12,089,772 B2
- Coffee making system27 Aug 2026US 2026/0248322 A1Maxi (Beijing) International Brand Management Co., Ltd.
- Systems and method for delivering hot water for the production of hot beverages9 Jul 2026US 2026/0191355 A1Odyssey Espresso LLC
- Gasket Structure And Moka Coffee Pot25 Jun 2026US 2026/0174267 A1
- Heat-dissipating thermostatic coffee pot25 Dec 2025US 2025/0386964 A1Zhejiang Chuangjian Kitchenware Co., Ltd.
- Bottom chamber handle for moka pot27 Nov 2025US 2025/0359708 A1
Most cited
By later US patents
- Fluid delivery system for generating pressure pulses to make beverages99US 6,405,637 B1Houseware Technology Group · 2002
- Electrical apparatus useful to prepare a hot beverage87US 5,111,740 A1992
- Portable espresso maker79US 6,062,127 A2000
- Apparatus for automatic coffee brewing60US 5,267,506 A1993
- Machine for brewing hot beverages57US 5,046,409 ARobert Krups Stiftung & Co. KG. · 1991