A47J 31/4439
With electrical heating elements
Official title: {with electrical heating elements (for flow-through heaters A47J31/445)}
A47J31/4439 (With electrical heating elements) appears on 32 US grants and 30 published applications in this corpus.
Search patents in A47J- Granted patents
- 32
- Published applications
- 30
- Assignees
- 31
- Inventors
- 85
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 0 | 3 |
| 2022 | 0 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 5 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coffee machine for hot and iced coffee29 Sep 2026US 12,745,874 B2The Steelstone Group LLC
- Beverage brewer with hot- and cold-brew options23 Dec 2025US 12,502,021 B2
- Beverage brewer with hot- and cold-brew options28 Jan 2025US 12,207,756 B2
- Milk beverage heating mixer6 Aug 2024US 12,053,124 B2
- Advanced drip filter coffee maker2 Jan 2024US 11,857,102 B2Breville Pty Limited
- Locking assembly of kitchen appliance1 Oct 2026US 2026/0294174 A1HCL Technologies Limited
- Coffee brewing system and method of brewing coffee31 Jul 2025US 2025/0241475 A1Imam Abdulrahman Bin Faisal University
- Beverage Brewer with Hot- and Cold-Brew Options10 Jul 2025US 2025/0221562 A1
- Beverage Brewer with Hot- and Cold-Brew Options3 Jul 2025US 2025/0213064 A1
- Beverage Brewer with Hot- and Cold-Brew Options23 Jan 2025US 2025/0024986 A1
Most cited
By later US patents
- Coffee maker53US 6,279,459 B1Amway Corporation · 2001
- Coffee maker42US 6,006,653 AWing Shing Products (BVI) Co. Ltd. · 1999
- Modularized custom beverage brewer41US 4,829,888 ANewco Research Corporation · 1989
- Modularized custom beverage brewer41US 4,892,031 ANewco Research Corporation · 1990
- Apparatus for making beverages39US 5,895,595 AD. H. Haden Limited · 1999