D21C 3/224
Use of means other than pressure and temperature
Official title: {Use of means other than pressure and temperature}
D21C3/224 (Use of means other than pressure and temperature) appears on 24 US grants and 17 published applications in this corpus.
Search patents in D21C- Granted patents
- 24
- Published applications
- 17
- Assignees
- 17
- Inventors
- 37
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 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 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 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 | 3 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing bleached pulp from a feedstock comprising recycled paper17 Jun 2025US 12,331,462 B2WestRock MWV, LLC
- Process for obtaining cellulose29 Nov 2022US 11,512,426 B2
- Isolation method for water insoluble components of a biomass16 Nov 2021US 11,174,355 B2Green Extraction Technologies
- Biomass process optimisation19 Jun 2018US 10,000,891 B2Bio-Sep, Inc.
- Screw compression process for the conversion of lignocellulosic suspensions containing a high proportion of dry material27 Jan 2015US 8,940,131 B2Ifp Energies Nouvelles
- Biomass treatment16 Jul 2026US 2026/0201072 A1Bio-Sep, Inc.
- Method and System for Producing Recycled Fibers for MDF or HDF Production20 Apr 2023US 2023/0118469 A1Valmet Technologies Oy
- Method for manufacturing bleached pulp from a feedstock comprising recycled paper9 Mar 2023US 2023/0073443 A1WestRock MWV, LLC
- Isolation method for water insoluble lignin components of a biomass27 Jan 2022US 2022/0025130 A1Green Extraction Technologies
- Wheat Straw Pulp, Preparation Method Therefor, Application Thereof and Method for Adjusting Degree of Substitution of CMC24 Dec 2020US 2020/0399403 A1Nanjing Forestry University
Most cited
By later US patents
- Pulping with low dissolved solids for improved pulp strength21US 5,489,363 AKamyr, Inc. · 1996
- Digester system for implementing low dissolved solids profiling21US 5,536,366 AAhlstrom Machinery Inc. · 1996
- Continuous digester with dissolved solids handling19US 5,662,775 AAhlstrom Machinery Inc. · 1997
- Dissolved solids control in pulp production18US 5,547,012 AKamyr, Inc. · 1996
- Dissolved solids control in pulp production16US 5,620,562 AAhlstrom Machinery Inc. · 1997