D21J 3/00
Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
D21J3/00 (Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds) appears on 297 US grants and 510 published applications in this corpus.
Search patents in D21J- Granted patents
- 297
- Published applications
- 510
- Assignees
- 230
- Inventors
- 821
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 8 | 2 |
| 2003 | 9 | 9 |
| 2004 | 5 | 11 |
| 2005 | 4 | 6 |
| 2006 | 4 | 5 |
| 2007 | 4 | 2 |
| 2008 | 3 | 4 |
| 2009 | 3 | 15 |
| 2010 | 3 | 5 |
| 2011 | 3 | 5 |
| 2012 | 2 | 9 |
| 2013 | 1 | 10 |
| 2014 | 6 | 7 |
| 2015 | 3 | 6 |
| 2016 | 4 | 15 |
| 2017 | 10 | 9 |
| 2018 | 10 | 15 |
| 2019 | 7 | 19 |
| 2020 | 10 | 26 |
| 2021 | 12 | 24 |
| 2022 | 14 | 46 |
| 2023 | 18 | 43 |
| 2024 | 28 | 78 |
| 2025 | 46 | 70 |
| 2026 | 22 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- D21J 3/10Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds85
- D21J 3/12Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds30
- D21J 3/04Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds6
- D21J 3/02Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds4
- D21J 3/06Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds2
- D21J 3/08Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds0
Recent patents
- Moisture/oil resistant composite materials29 Sep 2026US 12,747,536 B2World Centric
- Thermoformable ovenable recyclable coated cellulosic board, ovenable recyclable coated cellulosic board food vessels thermoformed therefrom, and methods for manufacturing and using thereof29 Sep 2026US 12,747,540 B2WestRock MWV, LLC
- Process and system for manufacturing a fibreboard from waste materials22 Sep 2026US 12,742,293 B2
- Process for the pretreatment of fibrous material, pretreatment chamber and fiber molding plant18 Aug 2026US 12,709,843 B2KIEFEL GmbH
- Method, apparatus, and system of a fibrillated nanocellulose material4 Aug 2026US 12,698,596 B2Ecoinno (H.K.) Limited
- Method for coating a hollow container comprising molded pulp8 Oct 2026US 2026/0308853 A1
- A process for molding cellulosic material into a tridimensional package, and a package thus obtained8 Oct 2026US 2026/0308854 A1Societe des Produits Nestle S. A.
- Coating apparatus for coating a hollow container comprising molded pulp1 Oct 2026US 2026/0297855 A1
- Method for making flat box blanks and method for packaging products17 Sep 2026US 2026/0274474 A1Fameccanica, Data S.P A.
- Device for producing shaped products from a plurality of paper layers17 Sep 2026US 2026/0275651 A1OPTIMA consumer GmbH
Most cited
By later US patents
- Biocomposite material and method of making155US 5,593,625 APhenix Biocomposites, Inc. · 1997
- Formable pulp compositions123US 4,562,218 AArmstrong World Industries, Inc. · 1985
- Method of producing shaped articles of fiber/binder mixtures78US 5,102,596 AG. Siempelkamp GmbH & Co. · 1992
- Process for manufacturing of formed products73US 4,377,440 A1983
- Biocomposite material and method of making48US 5,635,123 APhenix Biocomposites, Inc. · 1997