C01B 25/01
Treating phosphate ores or other raw phosphate materials to obtain phosphorus or
Official title: Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds
C01B25/01 (Treating phosphate ores or other raw phosphate materials to obtain phosphorus or) appears on 74 US grants and 33 published applications in this corpus.
Search patents in C01B- Granted patents
- 74
- Published applications
- 33
- Assignees
- 53
- Inventors
- 143
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 9 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 4 |
| 2005 | 2 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 6 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 4 |
| 2024 | 2 | 6 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Phosphorus production methods and systems and methods for producing a reduction product28 Jul 2026US 12,692,157 B2Novaphos Phosphate Technology LLC
- Preparation of an aqueous suspension of phosphate material11 Feb 2025US 12,221,342 B2Coatex
- Metal-free few-layer phosphorous nanomaterial: method for its preparation and use thereof4 Feb 2025US 12,214,336 B2Institut National De La Recherche Scientifique
- System and method for removing organics from phosphate ore31 Dec 2024US 12,180,071 B2KOR Mineral Technologies Inc.
- Phosphorus production methods and systems and methods for producing a reduction product2 Jan 2024US 11,858,811 B2Novaphos Inc.
- Metal-free few-layer phosphorous nanomaterial: method for its preparation and use thereof19 Sep 2024US 2024/0307857 A1Institut National De La Recherche Scientifique
- Sustainable plasma nitrophosphate process for production of nitrogen and phosphorous products and for carbon sequestration11 Jul 2024US 2024/0228287 A9Nitricity Inc.
- Sustainable plasma nitrophosphate process for production of nitrogen and phosphorous products and for carbon sequestration25 Apr 2024US 2024/0132354 A1Nitricity Inc.
- Method for removing elemental phosphorus from iron oxide-containing and phosphate-containing substances18 Apr 2024US 2024/0124997 A1Radmat AG
- Method for the combined recycling of phosphate and nitrogen from sewage sludge and optionally biological waste11 Apr 2024US 2024/0116792 A1Remondis Aqua GmbH & Co. KG
Most cited
By later US patents
- Fluid bed calcination process21US 4,017,585 ADorr-Oliver Incorporated · 1977
- Energy conservation and pollution abatement at phosphorus furnaces16US 4,372,929 AJames C. Barber and Associates, Inc. · 1983
- Production of fluid fertilizer from phosphorus furnace waste stream16US 4,451,277 AJames C. Barber and Associates, Inc. · 1984
- Production of fluid fertilizer from phosphorus furnace waste stream15US 4,383,847 AJames C. Barber and Associates, Inc. · 1983
- Production of fluid fertilizer from phosphorus furnace waste stream15US 4,514,366 AJames C. Barber and Associates, Inc. · 1985