C01B 25/2204
Arrangements of vessels used in reacting phosphate-containing material in wet process
Official title: {Arrangements of vessels used in reacting phosphate-containing material in wet process}
C01B25/2204 (Arrangements of vessels used in reacting phosphate-containing material in wet process) appears on 13 US grants and 5 published applications in this corpus.
Search patents in C01B- Granted patents
- 13
- Published applications
- 5
- Assignees
- 10
- Inventors
- 30
- Latest grant
- 1 Sep 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and methods for reducing formation of scale in phosphoric acid production1 Sep 2020US 10,759,662 B2
- Method for producing phosphoric acid and by-producing alpha-hemihydrate gypsum by wet-process18 Aug 2020US 10,745,278 B2Kingenta Ecological Engineering Group Co., Ltd.
- Method for removing iron in the manufacture of phosphoric acid29 Aug 2017US 9,745,193 B2Jacobs Engineering Group Inc.
- Apparatus for reacting a particulate solid and a liquid14 Dec 1982US 4,363,786 AOccidental Chemical Corporation
- Start-up procedure in producing phosphoric acid by the hemihydrate process30 Jun 1981US 4,276,270 AOccidental Chemical Corporation
- 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.
- Systems and methods for reducing formation of scale in phosphoric acid production12 Sep 2019US 2019/0276314 A1Solenis Technologies, L.P.
- Method for producing phosphoric acid and by-producing alpha-hemihydrate gypsum by wet-process13 Sep 2018US 2018/0257938 A1Kingenta Ecological Engineering Group Co., Ltd.
- Method for removing iron in the manufacture of phosphoric acid6 Oct 2016US 2016/0289075 A1Jacobs Engineering Group Inc.
Most cited
By later US patents
- Hemihydrate type phosphoric acid process9US 4,196,172 AOccidental Petroleum Corporation · 1980
- Hemihydrate type process for phosphoric acid manufacture using additive to improve filterability6US 4,220,630 AOccidental Petroleum Corporation · 1980
- Apparatus useful for wet process phosphoric acid production6US 4,260,584 AOccidental Petroleum Corporation · 1981
- Start-up procedure in producing phosphoric acid by the hemihydrate process6US 4,276,270 AOccidental Chemical Corporation · 1981
- Feed system for phosphoric acid production with decreased foaming5US 4,258,007 AOccidental Chemical Corporation · 1981