D21F 13/10
Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web
Official title: using board presses
D21F13/10 (Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web) appears on 13 US grants and 13 published applications in this corpus.
Search patents in D21F- Granted patents
- 13
- Published applications
- 13
- Assignees
- 10
- Inventors
- 38
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 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 | 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 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 3 |
| 2023 | 1 | 3 |
| 2024 | 4 | 0 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method, apparatus, and system of a fibrillated nanocellulose material4 Aug 2026US 12,698,596 B2Ecoinno (H.K.) Limited
- Method for hot pressing preforms from a fiber-containing material10 Mar 2026US 12,571,162 B2KIEFEL GmbH
- Pulp molding production line and processing method thereof1 Apr 2025US 12,264,435 B2Shurcon Manufacturing, Inc.
- Rotating pulp suction and robot transfer molding machine and molding method15 Oct 2024US 12,116,728 B2Shurcon Manufacturing (Zhejiang) Co., Ltd.
- Pulp molding production line and processing method10 Sep 2024US 12,084,812 B2
- Compostable sleeve apparatus and method of manufacture17 Sep 2026US 2026/0274549 A1
- Hot-Pressing Tool Half, Hot-Pressing Device with A Hot-Pressing Tool and Method for Hot Pressing Preforms from A Fiber-Containing Material5 Oct 2023US 2023/0313458 A1KIEFEL GmbH
- Pulp molding production line and processing method thereof5 Oct 2023US 2023/0313459 A1Be Green Packaging Co., Ltd.
- Method, apparatus, and system of a fibrillated nanocellulose material15 Jun 2023US 2023/0183924 A1Ecoinno (H.K.) Limited
- Rotating pulp suction and robot transfer molding machine and molding method1 Sep 2022US 2022/0275581 A1Shurcon Manufacturing (Zhejiang) Co., Ltd.
Most cited
By later US patents
- Manufacture of insulating products10US 4,142,933 ANewalls Insulation Company Limited · 1979
- Method of producing water-absorbent solid cloth-like articles10US 4,241,007 AMitsubishi Rayon Co., Ltd. · 1980
- Sheet manufacturing apparatus and sheet manufacturing method3US 9,920,478 B2Seiko Epson Corporation · 2018