D21H 17/69
Modified
Official title: modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
D21H17/69 (Modified) appears on 267 US grants and 240 published applications in this corpus.
Search patents in D21H- Granted patents
- 267
- Published applications
- 240
- Assignees
- 138
- Inventors
- 522
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 5 |
| 2003 | 3 | 8 |
| 2004 | 4 | 12 |
| 2005 | 3 | 10 |
| 2006 | 4 | 12 |
| 2007 | 5 | 8 |
| 2008 | 1 | 9 |
| 2009 | 6 | 9 |
| 2010 | 4 | 20 |
| 2011 | 9 | 11 |
| 2012 | 10 | 12 |
| 2013 | 14 | 14 |
| 2014 | 9 | 13 |
| 2015 | 12 | 36 |
| 2016 | 12 | 14 |
| 2017 | 15 | 16 |
| 2018 | 13 | 5 |
| 2019 | 12 | 8 |
| 2020 | 8 | 3 |
| 2021 | 4 | 8 |
| 2022 | 6 | 4 |
| 2023 | 3 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Aqueous slurry for a coating colour composition for paper, board or the like19 Aug 2025US 12,392,088 B2Kemira Oyj
- Treated titanium dioxide pigment, process of making thereof and use thereof in paper manufacture8 Oct 2024US 12,110,634 B2Tronox LLC
- Paper strength improvement using metal chelates and synthetic cationic polymers5 Dec 2023US 11,834,792 B2Kemira Oyj
- Composition comprising interactive ingredients10 Oct 2023US 11,781,024 B2FP-Pigments Oy
- Method of producing filler12 Sep 2023US 11,753,771 B2Stora Enso OYJ
- Fibrous cellulose-containing material, fibrous cellulose composite resin, and method for preparing fibrous cellulose-containing material9 May 2024US 2024/0150557 A1Daio Paper Corporation
- An aqueous slurry for a coating colour composition for paper, board or the like5 Oct 2023US 2023/0313465 A1Kemira Oyj
- Coating Formulations15 Dec 2022US 2022/0396919 A1Nano and Advanced Materials Institute Limited
- Treated titanium dioxide pigment with high magnesium oxide addition, process of making thereof and use thereof in paper manufacture20 Oct 2022US 2022/0333310 A1Tronox LLC
- Complex fibers of cellulose fibers with inorganic particles and processes for preparing them15 Sep 2022US 2022/0290373 A1Nippon Paper Industries Co., Ltd.
Most cited
By later US patents
- Reaction of carbon black with diazonium salts, resultant carbon black products and their uses157US 5,851,280 ACabot Corporation · 1998
- Aqueous inks and coatings containing modified carbon products156US 5,672,198 ACabot Corporation · 1997
- Reaction of carbon black with diazonium salts, resultant carbon black products and their uses123US 6,042,643 ACabot Corporation · 2000
- Process for production of paper or board123US 9,605,382 B2Kemira Oyj · 2017
- Process for preparing a sheet material with improved on-machine retention98US 4,943,349 APapeteries de Gascogne · 1990