A47J 31/08
Paper filter inlays therefor to be disposed after use
Official title: Paper filter inlays therefor {to be disposed after use}
A47J31/08 (Paper filter inlays therefor to be disposed after use) appears on 130 US grants and 126 published applications in this corpus.
Search patents in A47J- Granted patents
- 130
- Published applications
- 126
- Assignees
- 54
- Inventors
- 273
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 9 |
| 2003 | 4 | 4 |
| 2004 | 4 | 5 |
| 2005 | 1 | 3 |
| 2006 | 1 | 6 |
| 2007 | 1 | 11 |
| 2008 | 3 | 3 |
| 2009 | 1 | 4 |
| 2010 | 2 | 5 |
| 2011 | 0 | 5 |
| 2012 | 3 | 4 |
| 2013 | 2 | 2 |
| 2014 | 2 | 5 |
| 2015 | 3 | 4 |
| 2016 | 4 | 5 |
| 2017 | 7 | 6 |
| 2018 | 2 | 5 |
| 2019 | 1 | 4 |
| 2020 | 2 | 7 |
| 2021 | 4 | 4 |
| 2022 | 3 | 7 |
| 2023 | 2 | 3 |
| 2024 | 1 | 7 |
| 2025 | 2 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Drip coffee filter structure31 Mar 2026US 12,588,779 B2
- Beverage brewing material filter cup24 Mar 2026US 12,582,258 B2Adrian Rivera Maynez Enterprises, Inc.
- Single serve coffee maker17 Feb 2026US D1,113,312 S1Design
- Beverage extracting device29 Apr 2025US 12,285,130 B2Bravilor Bonamat BV
- Single serve pod system, single serve pod assembly system, pod dispenser system, pod apparatus, filter apparatus, process of assembly, and methods of use8 Apr 2025US 12,268,323 B2Savepods Inc.
- Coffee Brewing Device27 Aug 2026US 2026/0248315 A1
- Dual-purpose coffee filter hanging structure12 Feb 2026US 2026/0041271 A1
- Coffee brewing mechanism and coffee machine thereof29 Jan 2026US 2026/0026645 A1Tsun Foun Corp.
- Flow control filter cap and methods of use13 Nov 2025US 2025/0344895 A1AeroPress, Inc.
- Coffee press travel assembly31 Jul 2025US 2025/0241472 A1AeroPress, Inc.
Most cited
By later US patents
- Method of forming and inserting filter elements in cup-shaped containers213US 6,440,256 B1Keurig, Incorporated · 2002
- Coffee filter extractor119US 4,848,815 A1989
- Filtering device, filter element and method of manufacturing the filter element used for the preparation of brewed beverages104US 6,189,438 B1Braun GmbH · 2001
- Filter material82US 5,601,716 APAPCEL - Papier und Cellulose Technologie-und Handels-GmbH · 1997
- Coffee filter system54US 4,362,623 A1982