D21F 1/0018
Devices for dispensing fibres in a fluid
Official title: {Devices for dispensing fibres in a fluid}
D21F1/0018 (Devices for dispensing fibres in a fluid) appears on 30 US grants and 19 published applications in this corpus.
Search patents in D21F- Granted patents
- 30
- Published applications
- 19
- Assignees
- 24
- Inventors
- 63
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 4 |
| 2021 | 0 | 2 |
| 2022 | 6 | 1 |
| 2023 | 0 | 3 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sheet manufacturing apparatus28 Jul 2026US 12,692,655 B2Seiko Epson Corporation
- Apparatus for forming a substrate2 Jun 2026US 12,644,211 B2Kimberly-Clark Worldwide, Inc.
- Apparatus for forming a substrate6 Jan 2026US 12,516,457 B2Kimberly-Clark Worldwide, Inc.
- Process for producing paper or board and a product thereof4 Feb 2025US 12,215,463 B2Kemira Oyj
- Paper production3 Dec 2024US 12,157,974 B2Billerudkorsnas AB
- Apparatus for forming a substrate10 Sep 2026US 2026/0265971 A1Kimberly-Clark Worldwide, Inc.
- A method for manufacturing a sheet of a fibrous material9 Jul 2026US 2026/0193841 A1Inter IKEA Systems B.V.
- Sheet manufacturing apparatus26 Dec 2024US 2024/0426053 A1Seiko Epson Corporation
- Apparatus for forming a substrate22 Aug 2024US 2024/0279856 A1Kimberly-Clark Worldwide, Inc.
- Apparatus for forming a substrate6 Jul 2023US 2023/0212800 A1Kimberly-Clark Worldwide, Inc.
Most cited
By later US patents
- Method for dispersing cellulose based fibers in water36US 5,849,155 AE. Khashoggi Industries · 1998
- Method of making a stratified paper26US 6,902,650 B2International Paper Company · 2005
- Process for producing a uniform fiber dispersion and machine made light weight glass fiber web material19US 4,234,379 AThe Dexter Corporation · 1980
- Dispersion apparatus for the preparation of waste paper17US 4,431,482 AEscher Wyss Limited · 1984
- Arrangement for mixing flows in papermaking process16US 6,986,832 B2Metso Paper, Inc. · 2006