D21H 5/2628
Formation of a product from several constituents
Official title: {Formation of a product from several constituents, e.g. blends of various types of fibres, fillers and/or binders or formation from various sources and/or streams or fibres (mixing non-fibrous materials with fibres as a preliminary treatment of fibres, e.g. for spinning D01G13/00)}
D21H5/2628 (Formation of a product from several constituents) appears on 26 US grants and 1 published applications in this corpus.
Search patents in D21H- Granted patents
- 26
- Published applications
- 1
- Assignees
- 10
- Inventors
- 32
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sheet manufacturing apparatus21 Jul 2026US 12,686,969 B2Seiko Epson Corporation
- Apparatus for the production of elastic absorbent5 Jun 1990US 4,931,005 AShowa Denko K. K.
- Elastic absorbent and process for production thereof20 Feb 1990US 4,902,463 AShowa Denko K. K.
- Elastic absorbent18 Apr 1989US 4,822,668 AShowa Denko K. K.
- Process for pre-resinating cellulose fibers for cellulose composite structures3 Mar 1987US 4,647,324 AUnited Technologies Automotive Trim, Inc.
Most cited
By later US patents
- Adsorptive nonwoven fabric comprising fused fibers, non-fused fibers and absorptive material and method of making same154US 4,160,059 AHonshu Seishi Kabushiki Kaisha · 1979
- Liquid absorbent fibrous material and method of making the same77US 4,082,886 AJohnson & Johnson · 1978
- Nonwoven fabric75US 4,018,646 AJohnson & Johnson · 1977
- Fiber/absorbent polymer composites and method of forming same70US 4,354,487 AJohnson & Johnson · 1982
- Fibrous material and method of making the same68US 4,129,132 AJohnson & Johnson · 1978