D21J 3/10
Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
Official title: of hollow bodies
D21J3/10 (Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds) appears on 85 US grants and 182 published applications in this corpus.
Search patents in D21J- Granted patents
- 85
- Published applications
- 182
- Assignees
- 70
- Inventors
- 292
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 1 |
| 2003 | 5 | 8 |
| 2004 | 3 | 6 |
| 2005 | 4 | 0 |
| 2006 | 3 | 2 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 0 | 3 |
| 2017 | 3 | 2 |
| 2018 | 2 | 2 |
| 2019 | 0 | 6 |
| 2020 | 2 | 8 |
| 2021 | 3 | 8 |
| 2022 | 4 | 9 |
| 2023 | 9 | 13 |
| 2024 | 6 | 34 |
| 2025 | 14 | 34 |
| 2026 | 7 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Method for coating a hollow container comprising molded pulp7 Jul 2026US 12,674,284 B2Alpla Werke Alwin Lehner GmbH & Co. KG
- Pulp container with fused junction and method of making same23 Jun 2026US 12,662,288 B2Lgab LLC
- Pulp molded container and fabricating method thereof9 Jun 2026US 12,649,991 B2Intlpak Enterprises Corporation
- Mould for forming a unitary article from pulp2 Jun 2026US 12,644,231 B2Diageo Great Britain 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 dry-forming cellulose products from cellulose fibres in a product forming unit and a product forming unit17 Sep 2026US 2026/0275652 A1PulPac AB
- Apparatus and method for making molded pulp products from nanocellulose fibers17 Sep 2026US 2026/0275653 A1University of Massachusetts
Most cited
By later US patents
- Manual container assembly and liner integration fixture for pulp-molded shell with polymer liner container systems46US 8,663,419 B2Ecologic · 2014
- Paper making mold for pulp mold molding production and method and device for producing pulp mold molding40US 6,576,089 B1Kao Corporation · 2003
- Manual container assembly and liner integration fixture for pulp-molded shell with polymer liner container systems40US 9,126,719 B2Ecologic · 2015
- Method for binding fibers in a fiber reinforced preform using an electromagnetic field to melt binding fibers25US 5,286,326 AThe Budd Company · 1994
- Method of manufacturing pulp mold formed product22US 6,461,480 B1Kao Corporation · 2002