B01J 27/14
Phosphorus
Official title: Phosphorus; Compounds thereof
B01J27/14 (Phosphorus) appears on 2,496 US grants and 1,565 published applications in this corpus.
Search patents in B01J- Granted patents
- 2,496
- Published applications
- 1,565
- Assignees
- 808
- Inventors
- 4,701
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 57 | 0 |
| 1977 | 55 | 0 |
| 1978 | 59 | 0 |
| 1979 | 46 | 0 |
| 1980 | 32 | 0 |
| 1981 | 73 | 0 |
| 1982 | 63 | 0 |
| 1983 | 81 | 0 |
| 1984 | 65 | 0 |
| 1985 | 68 | 0 |
| 1986 | 52 | 0 |
| 1987 | 39 | 0 |
| 1988 | 50 | 0 |
| 1989 | 75 | 0 |
| 1990 | 41 | 0 |
| 1991 | 31 | 0 |
| 1992 | 50 | 0 |
| 1993 | 53 | 0 |
| 1994 | 40 | 0 |
| 1995 | 35 | 0 |
| 1996 | 38 | 0 |
| 1997 | 25 | 0 |
| 1998 | 32 | 0 |
| 1999 | 43 | 0 |
| 2000 | 39 | 0 |
| 2001 | 27 | 7 |
| 2002 | 39 | 31 |
| 2003 | 33 | 37 |
| 2004 | 26 | 58 |
| 2005 | 39 | 44 |
| 2006 | 31 | 46 |
| 2007 | 23 | 55 |
| 2008 | 29 | 46 |
| 2009 | 38 | 49 |
| 2010 | 52 | 71 |
| 2011 | 30 | 61 |
| 2012 | 31 | 63 |
| 2013 | 47 | 102 |
| 2014 | 68 | 73 |
| 2015 | 86 | 108 |
| 2016 | 78 | 99 |
| 2017 | 80 | 89 |
| 2018 | 85 | 67 |
| 2019 | 83 | 63 |
| 2020 | 59 | 63 |
| 2021 | 61 | 80 |
| 2022 | 55 | 64 |
| 2023 | 48 | 51 |
| 2024 | 38 | 56 |
| 2025 | 41 | 50 |
| 2026 | 27 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01J 27/186With arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese1,572
- B01J 27/16Containing oxygen , i.e. acids, anhydrides and their derivates with n, s737
- B01J 27/185With iron group metals or platinum group metals313
- B01J 27/182With silicon65
Recent patents
- Heterogeneous catalyst for transesterification and method of preparing same6 Oct 2026US RE51,051 E1Crystaphase Products, Inc.
- Method for preparing cremation crystals using catalyst obtained through reduction of phosphorus in skeletal remains29 Sep 2026US 12,747,514 B2
- Preparation method for methylphenol and homologue15 Sep 2026US 12,735,376 B2Dalian University of Technology
- Heterogeneous catalyst for transesterification and method of preparing same18 Aug 2026US RE50,994 E1Crystaphase Products, Inc.
- Systems and methods for producing nitriles11 Aug 2026US 12,703,676 B2Alliance for Energy Innovation, LLC
- Apparatus, system and method for processing exhaust gas24 Sep 2026US 2026/0284574 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Heavy oil hydrorefining method24 Sep 2026US 2026/0286235 A1Eneos Corporation
- Methane oxidation catalysts, methods of using thereof, and methods of making thereof10 Sep 2026US 2026/0264057 A1Yale University
- Metal phosphide-graphene aerogel catalyst for hydrolysis of ammonia borane, method for preparing the same, and hydrogen production system for hydrolysis of ammonia borane comprising the same10 Sep 2026US 2026/0264069 A1The Hong Kong Polytechnic University
- Hydrotreatment process using a sequence of catalysts with a catalyst based on nickel and tungsten on a silica-alumina support3 Sep 2026US 2026/0258310 A1Ifp Energies Nouvelles
Most cited
By later US patents
- Silica-coated alumina activator-supports for metallocene catalyst compositions292US 7,884,163 B2Chevron Phillips Chemical Company LP · 2011
- Crystalline metal aluminophosphates260US 4,567,029 AUnion Carbide Corporation · 1986
- Method of synthesizing zirconium phosphate particles175US 7,566,432 B2Renal Solutions, Inc. · 2009
- Catalytic multi-stage process for hydroconversion and refining hydrocarbon feeds140US 6,190,542 B1Hydrocarbon Technologies, Inc. · 2001
- Preparation of a hydrotreating catalyst132US 6,218,333 B1Shell Oil Company · 2001