D21C 9/185
Comprising at least one step where the pulp is suspended in a
Official title: {comprising at least one step where the pulp is suspended in a gaseous medium, e.g. flash drying}
D21C9/185 (Comprising at least one step where the pulp is suspended in a) appears on 17 US grants and 15 published applications in this corpus.
Search patents in D21C- Granted patents
- 17
- Published applications
- 15
- Assignees
- 9
- Inventors
- 36
- Latest grant
- 26 Feb 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 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 | 1 | 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 | 7 |
| 2004 | 3 | 3 |
| 2005 | 3 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 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 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for producing dried, singulated fibers using steam and heated air26 Feb 2008US 7,334,347 B2Weyerhaeuser Company
- System for making dried singulated crosslinked cellulose pulp fibers6 Nov 2007US 7,290,353 B2Weyerhaeuser Company
- Process for producing dried singulated crosslinked cellulose pulp fibers28 Mar 2006US 7,018,508 B2Weyerhaeuser Company
- Process to produce dried singulated cellulose pulp fibers28 Jun 2005US 6,910,285 B2Weyerhaeuser Company
- Drying system for producing dried singulated cellulose pulp fibers15 Mar 2005US 6,865,822 B2Weyerhaeuser Company
- A process for upgradation of paper pulp quality5 Jun 2025US 2025/0179732 A1
- Method of dewatering water soluble polymers24 Jan 2019US 2019/0023862 A1Helsingin Yliopisto
- Process for Producing Dried Singulated Fibers Using Steam and Heated Air17 Jan 2008US 2008/0010853 A1Weyerhaeuser Company
- Process for producing dried, singulated fibers using steam and heated air28 Apr 2005US 2005/0086828 A1Weyerhaeuser Company
- System for making dried singulated crosslinked cellulose pulp fibers3 Feb 2005US 2005/0022415 A1Weyerhaeuser Company
Most cited
By later US patents
- Process for producing dried, singulated fibers using steam and heated air20US 7,334,347 B2Weyerhaeuser Company · 2008
- Process and apparatus for flash drying fluffed cellulose pulp19US 4,043,049 A1977
- Method of producing multi-ply paper and board products exhibiting increased stiffness16US 5,169,496 AInternational Paper Company · 1992
- Process for producing and flash drying high yield mechanical cellulose pulp with steam and condensate recycle13US 4,537,655 AMoDo-Chemetics AB · 1985
- Drying wood pulp12US 4,253,822 ACourtaulds Limited · 1981