D21C 9/086
With organic compounds or compositions comprising organic compounds
Official title: {with organic compounds or compositions comprising organic compounds}
D21C9/086 (With organic compounds or compositions comprising organic compounds) appears on 88 US grants and 43 published applications in this corpus.
Search patents in D21C- Granted patents
- 88
- Published applications
- 43
- Assignees
- 62
- Inventors
- 176
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 3 |
| 2003 | 3 | 2 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 6 | 5 |
| 2015 | 3 | 6 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 4 |
| 2019 | 3 | 2 |
| 2020 | 4 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method to treat a condensate in a pulping process13 Jan 2026US 12,522,979 B2Nikede Comercio E RepresentaçõEs Ltda.
- Use of mesoporous silica12 Oct 2021US 11,142,868 B2Alma Mater Studiorum - Università di Bologna
- Drying/transportation and releasing MFC16 Mar 2021US 10,947,670 B2Stora Enso OYJ
- Methods to reduce rewinder breaks during paper production from recycled paper furnish8 Sep 2020US 10,767,314 B2Epygen Labs FZ LLC
- Process for preparing cellulose solution and equipment therefor9 Jun 2020US 10,676,576 B2China Textile Academy
- Method for producing products based on non-woody biomass as raw material30 May 2024US 2024/0175206 A1Technische UniversitäT Wien
- Method for producing products based on wood as a raw material7 Mar 2024US 2024/0076831 A1
- Method to treat a condensate in a pulping process24 Aug 2023US 2023/0265610 A1Nikede Comercio E RepresentaçõEs Ltda.
- Method for pitch control during bleaching6 Jul 2023US 2023/0212821 A1Kemira Oyj
- Processes for biomass treatments7 Jul 2022US 2022/0213276 A1
Most cited
By later US patents
- Control of pulp-paper mill pitch deposits33US 3,992,249 AAmerican Cyanamid Company · 1976
- Pitch control27US 5,300,194 AW. R. Grace & Co.-Conn. · 1994
- Detackification of adhesive materials contained in secondary fiber with polyvinyl alcohol26US 4,886,575 ABetz Laboratories, Inc. · 1989
- Process for reducing discoloration and/or tackiness in processing waste paper fibers24US 4,710,267 ABerol Kemi AB · 1987
- Use of dispersion polymers for coated broke treatment22US 5,466,338 ANalco Chemical Company · 1995