C01B 25/027
Of yellow phosphorus
Official title: of yellow phosphorus
C01B25/027 (Of yellow phosphorus) appears on 66 US grants and 6 published applications in this corpus.
Search patents in C01B- Granted patents
- 66
- Published applications
- 6
- Assignees
- 25
- Inventors
- 150
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 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 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Phosphorus coal gasification reaction device for combined production of yellow phosphorus and syngas31 Dec 2024US 12,180,431 B2Kunming University of Science and Technology
- Method, apparatus and special phosphorus recovery device for recovering yellow phosphorus from electric furnace phosphorus-producing furnace gas2 Apr 2019US 10,246,331 B2Intermet Technologies Chengdu Co., Ltd.
- Recovery of elemental phosphorus from phosphorus sludge17 Sep 2002US 6,451,276 B1Glenn Springs Holdings, Inc.
- Preparation of phosphatic feedstock from phosphorus-containing waste18 Apr 2000US 6,051,201 AJames C. Barber and Associates, Inc.
- Method of separating and recovering phosphorus from phosphorus sludge26 Mar 1991US 5,002,745 AFMC Corporation
- Method for producing by-product yellow phosphorus slag from yellow phosphorus by unconventional electric furnace process, and use22 Feb 2024US 2024/0059566 A1Zhengzhou University
- System for combined production of yellow phosphorus and syngas5 Jan 2023US 2023/0002692 A1Kunming University of Science and Technology
- Phosphorus coal gasification reaction device for combined production of yellow phosphorus and syngas5 Jan 2023US 2023/0002693 A1Kunming University of Science and Technology
- Process for producing phosphorus20 Jan 2022US 2022/0017366 A1
- Method, apparatus and special phosphorus recovery device for recovering yellow phosphorus from electric furnace phosphorus-producing furnace gas3 Aug 2017US 2017/0217773 A1Intermet Technologies Chengdu Co., Ltd.
Most cited
By later US patents
- Vertical shaft melting furnace and method of melting65US 4,877,449 AInstitute of Gas Technology · 1989
- Processes and equipment for production of elemental phosphorus and thermal phosphoric acid27US 4,919,906 AJames C. Barber and Associates, Inc. · 1990
- Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy23US 4,921,551 AGeneral Motors Corporation · 1990
- 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