C01B 25/003
Phosphorus
Official title: {Phosphorus}
C01B25/003 (Phosphorus) appears on 76 US grants and 39 published applications in this corpus.
Search patents in C01B- Granted patents
- 76
- Published applications
- 39
- Assignees
- 45
- Inventors
- 177
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 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 | 8 |
| 2015 | 0 | 0 |
| 2016 | 4 | 2 |
| 2017 | 6 | 4 |
| 2018 | 0 | 1 |
| 2019 | 4 | 6 |
| 2020 | 2 | 5 |
| 2021 | 5 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 4 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Phosphorus production methods and systems and methods for producing a reduction product28 Jul 2026US 12,692,157 B2Novaphos Phosphate Technology LLC
- Method for phosphorus removal and recovery using organic carbon source of urban sewage30 Dec 2025US 12,509,380 B2Suzhou University of Science and Technology
- Method for recovering phosphorus from sludge rich in chemical phosphorus precipitates using high-protein biomass waste20 May 2025US 12,304,842 B2Tongji University
- Phosphorus production methods and systems and methods for producing a reduction product2 Jan 2024US 11,858,811 B2Novaphos Inc.
- Multi-atomic layered materials29 Jun 2021US 11,046,585 B2Sabic Global Technologies B.V.
- Method and apparatus for synthesizing two-dimensional materials19 Jun 2025US 2025/0201799 A1
- Sulfide solid electrolyte composition, electrode mixture containing same, and method for producing sulfide solid electrolyte composition22 Aug 2024US 2024/0283008 A1Idemitsu Kosan Co., Ltd.
- Method for removing elemental phosphorus from iron oxide-containing and phosphate-containing substances18 Apr 2024US 2024/0124997 A1Radmat AG
- Phosphorus Production Methods and Systems and Methods for Producing a Reduction Product14 Mar 2024US 2024/0083749 A1Novaphos Phosphate Technology LLC
- Ultrathin nanoribbons of highly anisotropic layered material and method of production22 Feb 2024US 2024/0059565 A1University of Louisville Research Foundation, Inc.
Most cited
By later US patents
- Destruction of inorganic hazardous wastes47US 4,695,447 ADetox International Corporation · 1987
- Stabilized red phosphorus for use as flame-retardant, in particular for compositions on the basis of polymers29US 4,698,215 ASaffa S.p.A. · 1987
- Permanent magnet manufacture from very low coercivity crystalline rare earth-transition metal-boron alloy23US 4,921,551 AGeneral Motors Corporation · 1990
- Process for stabilizing by encapsulation red phosphorus to be used as flame retardant of polymeric materials and product so obtained22US 4,440,880 ASaffa S.p.A. · 1984
- Stabilized red phosphorus and process for its manufacture21US 4,315,897 AHoechst Aktiengesellschaft · 1982