D21J 3/04
Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
Official title: of tubes
D21J3/04 (Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds) appears on 6 US grants and 5 published applications in this corpus.
Search patents in D21J- Granted patents
- 6
- Published applications
- 5
- Assignees
- 5
- Inventors
- 19
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 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 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pulp bottle with molded interior lining and methods of making same23 Jun 2026US 12,661,841 B2Lgab LLC
- Consistently-automated production machines and method for preparing dried paper article28 Nov 2023US 11,825,879 B2Golden Arrow Printing Technology (Kunshan) Co., Ltd.
- Method of making an acoustic automotive HVAC and AIS duct with a particle fiber slurry28 May 2019US 10,300,762 B2Toledo Molding & Die, Inc.
- Wound product cores and processes for making them14 Nov 2000US 6,146,498 AKimberly-Clark Worldwide, Inc.
- Apparatus for producing an elongated fibrous object2 Jun 1992US 5,118,275 A
- Method for forming a cellulosic tampon applicator2 Apr 2026US 2026/0090920 A1The Procter & Gamble Company
- Pulp Bottle with Molded Interior Lining and Methods of Making Same20 Jul 2023US 2023/0226741 A1Lgab LLC
- Consistently-automated production machines and method for preparing dried paper article18 Feb 2021US 2021/0047784 A1Golden Arrow Printing Technology (Kunshan) Co., Ltd.
- Method of Making an Acoustic Automotive HVAC and AIS Duct with a Particle Fiber Slurry26 Oct 2017US 2017/0305232 A1Toledo Molding & Die, Inc.
- Reinforced paperboard tube18 Mar 2004US 2004/0052986 A1
Most cited
By later US patents
- Wound product cores and processes for making them6US 6,146,498 AKimberly-Clark Worldwide, Inc. · 2000
- Method of making an acoustic automotive HVAC and AIS duct with a particle fiber slurry2US 10,300,762 B2Toledo Molding & Die, Inc. · 2019
- Apparatus for producing an elongated fibrous object1US 5,118,275 A1992