D21B 1/14
Disintegrating in mills
D21B1/14 (Disintegrating in mills) appears on 221 US grants and 147 published applications in this corpus.
Search patents in D21B- Granted patents
- 221
- Published applications
- 147
- Assignees
- 138
- Inventors
- 423
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 7 | 0 |
| 1981 | 13 | 0 |
| 1982 | 6 | 0 |
| 1983 | 11 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 9 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 3 |
| 2002 | 1 | 0 |
| 2003 | 2 | 4 |
| 2004 | 2 | 11 |
| 2005 | 3 | 7 |
| 2006 | 5 | 3 |
| 2007 | 4 | 7 |
| 2008 | 2 | 7 |
| 2009 | 3 | 7 |
| 2010 | 7 | 8 |
| 2011 | 6 | 3 |
| 2012 | 6 | 4 |
| 2013 | 1 | 6 |
| 2014 | 6 | 7 |
| 2015 | 7 | 4 |
| 2016 | 2 | 2 |
| 2017 | 1 | 5 |
| 2018 | 3 | 7 |
| 2019 | 3 | 11 |
| 2020 | 3 | 4 |
| 2021 | 11 | 11 |
| 2022 | 5 | 2 |
| 2023 | 6 | 6 |
| 2024 | 4 | 9 |
| 2025 | 2 | 2 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials14 Jul 2026US 12,678,759 B2Circ, LLC
- Process and system for producing pulp, energy, and bioderivatives from plant-based and recycled materials28 Apr 2026US 12,611,644 B2Circ, LLC
- Method of making fire retardant materials and related products17 Mar 2026US 12,577,732 B2Cleanfiber Inc.
- Paper stock modification device10 Mar 2026US 12,571,160 B2Taizen Co., Ltd.
- Vibration measuring assembly14 Oct 2025US 12,440,850 B2Voith Patent GmbH
- Process and System for Producing Pulp, Energy, and Bioderivatives from Plant-Based and Recycled Materials10 Sep 2026US 2026/0264040 A1Circ, LLC
- Preparation of Maple Wood for CTMP Production30 Jul 2026US 2026/0218448 A1Billerud Aktiebolag (publ)
- Maple HT-CTMP30 Jul 2026US 2026/0218449 A1Billerud Aktiebolag (publ)
- HT-CTMP Formed from a Maple Wood/Softwood Mixture30 Jul 2026US 2026/0218453 A1Billerud Aktiebolag (publ)
- Two-step impregnation in ht-ctmp production23 Jul 2026US 2026/0210040 A1Billerud Aktiebolag (publ)
Most cited
By later US patents
- Process for making a flowable and meterable densified fiber particle57US 7,201,825 B2Weyerhaeuser Company · 2007
- Method and apparatus for mixing chemicals into fiber pulp48US 4,908,101 AHedemora AB · 1990
- Treating pulp with oxygen41US 4,295,925 AWeyerhaeuser Company · 1981
- Method for producing pulp using pre-treatment with stabilizers and refining40US 5,002,635 AScott Paper Company · 1991
- Method of producing peroxide bleached pulp38US 4,270,976 ADefibrator AB · 1981