C01F 11/185
After-treatment
Official title: {After-treatment, e.g. grinding, purification, conversion of crystal morphology}
C01F11/185 (After-treatment) appears on 232 US grants and 248 published applications in this corpus.
Search patents in C01F- Granted patents
- 232
- Published applications
- 248
- Assignees
- 131
- Inventors
- 546
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 3 |
| 2003 | 4 | 4 |
| 2004 | 2 | 4 |
| 2005 | 1 | 6 |
| 2006 | 2 | 4 |
| 2007 | 2 | 5 |
| 2008 | 4 | 9 |
| 2009 | 1 | 10 |
| 2010 | 1 | 11 |
| 2011 | 5 | 6 |
| 2012 | 6 | 13 |
| 2013 | 11 | 9 |
| 2014 | 6 | 12 |
| 2015 | 10 | 16 |
| 2016 | 7 | 6 |
| 2017 | 13 | 22 |
| 2018 | 10 | 20 |
| 2019 | 9 | 12 |
| 2020 | 14 | 12 |
| 2021 | 9 | 14 |
| 2022 | 12 | 7 |
| 2023 | 10 | 12 |
| 2024 | 10 | 15 |
| 2025 | 3 | 9 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Calcium carbonate sintered body and method for producing same, and bone grafting material8 Sep 2026US 12,729,128 B2Shiraishi Central Laboratories Co. Ltd.
- Oolitic aragonite beads and methods therefor25 Aug 2026US 12,714,654 B2Calcean Minerals and Materials, LLC
- Encapsulated amorphous calcium carbonate compositions25 Aug 2026US 12,714,726 B2Amorphical Ltd.
- Methods for reducing moisture content in alkaline earth metal carbonates24 Feb 2026US 12,559,608 B2INCOA Performance Minerals, LLC
- Methods and systems for treatment of limestone to form vaterite13 Jan 2026US 12,522,511 B2Arelac, Inc.
- Method for producing calcium carbonate25 Jun 2026US 2026/0176152 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Calcium carbonate water slurry and method for producing calcium carbonate water slurry11 Jun 2026US 2026/0159695 A1Shiraishi Kogyo Kaisha, Ltd.
- Enhancing Carbon Dioxide Storage via Bio-Inspired Mineralization of Vaterite Microspheres Using Ultrasonication and Bio-additives21 May 2026US 2026/0138880 A1UNM Rainforest Innovations
- Compositions, methods, and systems related to calcium carbonate blends26 Mar 2026US 2026/0084977 A1Arelac, Inc.
- Method for synthesizing a calcium-based biomineral under ambient conditions26 Feb 2026US 2026/0055003 A1City University of Hong Kong
Most cited
By later US patents
- Preparation of granulated alkaline earth metal carbonate64US 5,362,688 ASolvay Barium Strontium GmbH · 1994
- Isolation of the calcium-phosphate crystals of bone60US 5,565,502 AChildren's Medical Center Corporation · 1996
- Preparation of granulated alkaline earth metal carbonate59US 5,366,513 ASolvay Barium Strontium GmbH · 1994
- Isolation of the calcium-phosphate crystals of bone59US 5,691,397 AChildren's Medical Center Corporation · 1997
- Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper57US 5,043,017 APfizer Inc. · 1991