C08B 15/08
Fractionation of cellulose
Official title: Fractionation of cellulose, e.g. separation of cellulose crystallites
C08B15/08 (Fractionation of cellulose) appears on 98 US grants and 158 published applications in this corpus.
Search patents in C08B- Granted patents
- 98
- Published applications
- 158
- Assignees
- 90
- Inventors
- 312
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 4 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 1 | 4 |
| 2014 | 4 | 5 |
| 2015 | 2 | 10 |
| 2016 | 7 | 14 |
| 2017 | 3 | 14 |
| 2018 | 7 | 17 |
| 2019 | 11 | 10 |
| 2020 | 11 | 10 |
| 2021 | 8 | 18 |
| 2022 | 4 | 15 |
| 2023 | 9 | 5 |
| 2024 | 15 | 5 |
| 2025 | 5 | 15 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Efficient green process for the preparation of nanocelluloses, novel modified nanocelluloses and their application29 Sep 2026US 12,747,303 B2Max-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V.
- Process for manufacturing of nanocrystalline cellulose (NCC)18 Aug 2026US 12,709,648 B2Sixring Inc.
- Nanocellulose compositions and processes to produce same9 Dec 2025US 12,492,267 B2GranBio Intellectual Property Holdings, LLC
- Medium additive for suspension culture, medium composition and culture method21 Oct 2025US 12,448,407 B2DKS Co. Ltd.
- Method for the preparation of micro or nano crystalline cellulose15 Jul 2025US 12,359,003 B2Cellicon B.V.
- Process for producing a fibrous material27 Aug 2026US 2026/0250912 A1Stora Enso OYJ
- Method for preparing holocellulose16 Jul 2026US 2026/0201074 A1
- Functional bacterial nanocellulose film and its preparing method16 Apr 2026US 2026/0103544 A1Korea Research Institute of Chemical Technology
- Methods for processing fibrous cellulosic material, products and uses thereof26 Mar 2026US 2026/0085469 A1The Court of Edinburgh Napier University
- Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom6 Nov 2025US 2025/0340673 A1GranBio Intellectual Property Holdings, LLC
Most cited
By later US patents
- Cellulose fiber based compositions and film and the process for their manufacture86US 5,817,381 AAgricultural Utilization Research Institute · 1998
- Cellulose fiber based compositions and film and the process for their manufacture63US 6,083,582 ARegents of the University of Minnesota · 2000
- Crystalline cellulose production55US 5,346,589 AGenencor International, Inc. · 1994
- Cellulose powder34US 7,939,101 B2Asahi Kasei Kabushiki Kaisha · 2011
- Method for forming cellulose20US 6,921,820 B2Genesis Research Institute, Inc. · 2005