D21H 17/66
Salts
Official title: Salts, e.g. alums
D21H17/66 (Salts) appears on 349 US grants and 337 published applications in this corpus.
Search patents in D21H- Granted patents
- 349
- Published applications
- 337
- Assignees
- 220
- Inventors
- 838
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 10 | 0 |
| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 3 |
| 2002 | 12 | 1 |
| 2003 | 7 | 5 |
| 2004 | 3 | 3 |
| 2005 | 0 | 7 |
| 2006 | 3 | 8 |
| 2007 | 2 | 5 |
| 2008 | 1 | 3 |
| 2009 | 1 | 10 |
| 2010 | 4 | 15 |
| 2011 | 5 | 20 |
| 2012 | 8 | 14 |
| 2013 | 12 | 17 |
| 2014 | 20 | 21 |
| 2015 | 10 | 29 |
| 2016 | 13 | 18 |
| 2017 | 13 | 11 |
| 2018 | 14 | 24 |
| 2019 | 11 | 25 |
| 2020 | 21 | 15 |
| 2021 | 18 | 14 |
| 2022 | 10 | 20 |
| 2023 | 13 | 20 |
| 2024 | 8 | 12 |
| 2025 | 11 | 10 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for producing and using fibrillated biodegradable microfibers7 Jul 2026US 12,674,278 B2
- Board, method for manufacturing a board and a panel comprising such board material26 May 2026US 12,637,810 B2Unilin BV
- Aqueous biodegradable-resin dispersion, production method therefor, and food-packaging paper obtained using aqueous biodegradable-resin dispersion7 Apr 2026US 12,595,626 B2Miyoshi Oil & Fat Co., Ltd.
- Static mixer for electrical submersible pump (ESP) high gas/oil ratio (GOR) completions3 Mar 2026US 12,565,736 B2Saudi Arabian Oil Company
- Use of metal chelates as a surface application for abrasion and/or taber stiffness, improvement in paper and paperboard13 Jan 2026US 12,522,981 B2Kemira Oyj
- Layered structure27 Aug 2026US 2026/0249600 A1Camm Solutions (Spain) R&D, S.L.U.
- Packing material and manufacturing method of packing material13 Aug 2026US 2026/0234872 A1Sony Group Corporation
- Aqueous dispersion of alkyl ketene dimer and its use23 Jul 2026US 2026/0210054 A1Kemira Oyj
- Aqueous dispersion of alkyl ketene dimer and its use23 Jul 2026US 2026/0210055 A1Kemira Oyj
- Pulp composition9 Jul 2026US 2026/0193845 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Dispersible nonwoven fabric and method of making same166US 5,935,880 A1999
- Conductive laminate flooring134US 4,724,187 ANevamar Corporation · 1988
- Acid-to-alkaline papermaking process122US 5,240,561 AIndustrial Progress, Inc. · 1993
- Papermaking process112US 5,221,435 ANalco Chemical Company · 1993
- Retention and drainage aid for papermaking106US 4,927,498 AE. I. Du Pont de Nemours and Company · 1990