D21F 1/024
Details of the feed chamber
Official title: {Details of the feed chamber}
D21F1/024 (Details of the feed chamber) appears on 56 US grants and 21 published applications in this corpus.
Search patents in D21F- Granted patents
- 56
- Published applications
- 21
- Assignees
- 30
- Inventors
- 107
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 2 |
| 2022 | 4 | 0 |
| 2023 | 0 | 2 |
| 2024 | 2 | 2 |
| 2025 | 0 | 1 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus for forming a substrate2 Jun 2026US 12,644,211 B2Kimberly-Clark Worldwide, Inc.
- Foam-based manufacturing system and process14 Apr 2026US 12,601,113 B2Kimberly-Clark Worldwide, Inc.
- Apparatus for forming a substrate6 Jan 2026US 12,516,457 B2Kimberly-Clark Worldwide, Inc.
- Apparatus for forming a substrate11 Jun 2024US 12,006,604 B2
- Foam-based manufacturing system and process19 Mar 2024US 11,932,988 B2Kimberly-Clark Worldwide, Inc.
- Apparatus for forming a substrate10 Sep 2026US 2026/0265971 A1Kimberly-Clark Worldwide, Inc.
- Foam-Based Manufacturing System and Process6 Aug 2026US 2026/0226679 A1Kimberly-Clark Worldwide, Inc.
- Foam-Based Manufacturing System and Process23 Jul 2026US 2026/0210038 A1Kimberly-Clark Worldwide, Inc.
- Sheet manufacturing apparatus23 Oct 2025US 2025/0327245 A1Seiko Epson Corporation
- Apparatus for forming a substrate22 Aug 2024US 2024/0279856 A1Kimberly-Clark Worldwide, Inc.
Most cited
By later US patents
- Headbox apparatus with stock dilution conduits for basis weight control39US 5,196,091 ABeloit Technologies, Inc. · 1993
- Apparatus for forming a multilayer jet of paper making stock37US 4,445,974 AAktiebolaget Karlstads Mekaniska Werkstad · 1984
- Method of operating a headbox apparatus for a papermaking machine30US 4,888,094 ASulzer-Escher Wyss GmbH · 1989
- Headbox apparatus for a papermaking machine30US 4,897,158 ASulzer-Escher Wyss GmbH · 1990
- Headbox for delivering a jet of well dispersed fibrous stock25US 4,070,238 AAktiebolaget Karlstads Mekaniska Werkstad · 1978