C01D 3/22
Preparation in the form of granules, pieces, or other shaped products
C01D3/22 (Preparation in the form of granules, pieces, or other shaped products) appears on 38 US grants and 31 published applications in this corpus.
Search patents in C01D- Granted patents
- 38
- Published applications
- 31
- Assignees
- 33
- Inventors
- 88
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 4 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 3 |
| 2014 | 3 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 4 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 3 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing sulphur-containing potash granules18 Aug 2026US 12,709,546 B2K+S Aktiengesellschaft
- Method for producing potassium chloride granular material14 Nov 2023US 11,814,297 B2K+S Aktiengesellschaft
- Method for producing potassium chloride granular materials14 Nov 2023US 11,814,298 B2K+S Aktiengesellschaft
- Process for producing potassium chloride granulates24 Oct 2023US 11,795,060 B2K+S Aktiengesellschaft
- Large-particle spherical salt and preparation method thereof21 Jun 2022US 11,365,127 B2Tianjin University of Science and Technology
- Chlorite compositions7 Nov 2024US 2024/0367988 A1Neuvivo, Inc.
- Chemical treatment for preparing metal electrodes30 Mar 2023US 2023/0101833 A1Commonwealth Scientific and Industrial Research Organisation
- Method for producing sulphur-containing potash granules22 Dec 2022US 2022/0402766 A1K+S Aktiengesellschaft
- Large-Particle Spherical Salt and Preparation Method Thereof2 Dec 2021US 2021/0371292 A1Tianjin University of Science and Technology
- Formed Polygon Structure Configured To Disperse A Material Upon Impact15 Jul 2021US 2021/0214598 A1
Most cited
By later US patents
- Hydrodynamic cavitation crystallization process26US 7,041,144 B2Five Star Technologies, Inc. · 2006
- Granulation of potash salts21US 4,385,920 AInternational Minerals & Chemical Corp. · 1983
- Antiflocculating agents for metal halide solutions18US 4,753,740 AEthyl Corporation · 1988
- Method for producing salt grains having a given particle size11US 6,156,247 AMagneti Marelli S.p.A. · 2000
- Compacted granular potassium chloride, and method and apparatus for production of same10US 7,727,501 B2The Mosaic Company · 2010