C01F 7/062
Digestion
C01F7/062 (Digestion) appears on 55 US grants and 30 published applications in this corpus.
Search patents in C01F- Granted patents
- 55
- Published applications
- 30
- Assignees
- 32
- Inventors
- 135
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 2 | 2 |
| 2005 | 1 | 4 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 4 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 2 |
| 2018 | 3 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat exchanger3 Feb 2026US 12,540,775 B2
- Use of calcium fluoride in the bayer process29 Jul 2025US 12,371,337 B2Rio Tinto Alcan International Limited
- Purification of ores using boronic acid-functional compounds19 Nov 2024US 12,145,856 B2Ecolab USA Inc.
- Heat exchanger4 Jun 2024US 12,000,656 B2
- Methods and compositions for bauxite beneficiation6 Oct 2020US 10,793,444 B2Ecolab USA Inc.
- Method for digesting bauxite slurry25 Jun 2026US 2026/0176151 A1Zhengzhou Non-Ferrous Metals Research Institute Co. Ltd of Chalco
- Heat Exchanger22 Aug 2024US 2024/0280323 A1
- Purification of ores using boronic acid-functional compounds18 Aug 2022US 2022/0259061 A1Ecolab USA Inc.
- Use of Calcium Fluoride in the Bayer Process5 May 2022US 2022/0135417 A1Rio Tinto Alcan International Limited
- Methods for quantitating protein biomarkers29 Oct 2020US 2020/0341002 A1
Most cited
By later US patents
- Method of preventing or reducing aluminosilicate scale in a bayer process30US 6,814,873 B2Cytec Technology Corp. · 2004
- Method for processing bauxites19US 3,944,648 A1976
- Method and compositions for preventing or reducing aluminosilicate scale in alkaline industrial processes12US 7,390,415 B2Cytec Technology Corp. · 2008
- Process for extracting alumina from aluminous ores10US 4,426,363 ASumitomo Aluminium Smelting Company, Limited · 1984
- Polymers for preventing or reducing aluminosilicate scale in a bayer process10US 7,442,755 B2Cytec Technology Corp. · 2008