D21H 23/765
Addition of all compounds to the pulp
Official title: {Addition of all compounds to the pulp}
D21H23/765 (Addition of all compounds to the pulp) appears on 92 US grants and 42 published applications in this corpus.
Search patents in D21H- Granted patents
- 92
- Published applications
- 42
- Assignees
- 56
- Inventors
- 224
- Latest grant
- 27 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 0 |
| 2002 | 9 | 4 |
| 2003 | 5 | 7 |
| 2004 | 3 | 10 |
| 2005 | 2 | 5 |
| 2006 | 1 | 5 |
| 2007 | 4 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 2 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for manufacture of paper or board and paper or board obtained by the method27 Dec 2022US 11,535,985 B2Kemira Oyj
- Methods to reduce rewinder breaks during paper production from recycled paper furnish8 Sep 2020US 10,767,314 B2Epygen Labs FZ LLC
- Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality24 Dec 2019US 10,513,827 B2International Paper Company
- Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality16 Feb 2016US 9,260,820 B2International Paper Company
- Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality24 Dec 2013US 8,613,836 B2International Paper Company
- Method for manufacture of paper or board and paper or board obtained by the method7 Jan 2021US 2021/0002827 A1Kemira Oyj
- Methods to reduce Rewinder Breaks during Paper Production from Recycled Paper Furnish20 Dec 2018US 2018/0363249 A1Epygen Labs FZ LLC
- Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality9 Jun 2016US 2016/0160445 A1International Paper Company
- Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality17 Apr 2014US 2014/0102655 A1International Paper Company
- Anionic functional promoter and charge control agent with improved wet to dry tensile strength ratio9 Feb 2012US 2012/0035306 A1Kemira Oyj
Most cited
By later US patents
- Papermaking and products made thereby159US 4,388,150 AEKA Aktiebolag · 1983
- Highly filled sheets and method of preparation thereof125US 4,225,383 AThe Dow Chemical Company · 1980
- Production of paper and paper board121US 4,913,775 AAllied Colloids Limited · 1990
- Silica sols having high surface area109US 5,368,833 AEka Nobel AB · 1994
- Composite fiberboard and process of manufacture95US 4,963,603 AArmstrong World Industries, Inc. · 1990