C04B 2235/447
Phosphates or phosphites
Official title: Phosphates or phosphites, e.g. orthophosphate or hypophosphite
C04B2235/447 (Phosphates or phosphites) appears on 330 US grants and 452 published applications in this corpus.
Search patents in C04B- Granted patents
- 330
- Published applications
- 452
- Assignees
- 289
- Inventors
- 1,037
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 5 |
| 2003 | 1 | 22 |
| 2004 | 7 | 10 |
| 2005 | 6 | 17 |
| 2006 | 9 | 9 |
| 2007 | 8 | 13 |
| 2008 | 6 | 11 |
| 2009 | 9 | 17 |
| 2010 | 16 | 28 |
| 2011 | 11 | 28 |
| 2012 | 12 | 23 |
| 2013 | 14 | 30 |
| 2014 | 28 | 20 |
| 2015 | 15 | 12 |
| 2016 | 13 | 15 |
| 2017 | 11 | 23 |
| 2018 | 15 | 14 |
| 2019 | 10 | 17 |
| 2020 | 13 | 16 |
| 2021 | 13 | 17 |
| 2022 | 11 | 20 |
| 2023 | 19 | 21 |
| 2024 | 17 | 28 |
| 2025 | 23 | 23 |
| 2026 | 11 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Annealing separator composition for grain- oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet6 Oct 2026US 12,753,457 B2Posco
- Method of making vacuum insulated panel25 Aug 2026US 12,715,199 B2LuxWall, Inc.
- Extrusion printing of biocompatible scaffolds7 Jul 2026US 12,673,132 B2William Marsh Rice University
- Powder composition, kit, and method for determining orthophosphate concentration5 May 2026US 12,618,821 B2Hach Company
- Battery assembly, ceramifiable composition, and method of making the same5 May 2026US 12,620,660 B23M Innovative Properties Company
- Conductive particle having phosphoric acids for positive or negative electrode17 Sep 2026US 2026/0279819 A1Shenzhen TXD Technology Co., Ltd.
- Multi-doped garnet electrolytes27 Aug 2026US 2026/0253946 A1Ion Storage Systems, Inc.
- Insulation coating film composition for grain-oriented electrical steel sheet, preparation method therefor, grain-oriented electrical steel sheet having an insulation coating film formed on surface thereof by using same, and manufacturing method therefor23 Jul 2026US 2026/0209120 A1Posco
- Inorganic particle dispersed slurry composition and method for producing inorganic sintered body9 Jul 2026US 2026/0193140 A1Sekisui Chemical Co., Ltd.
- Barrier Compositions, Articles Comprising Barrier Compositions, and Associated Methods9 Jul 2026US 2026/0196531 A1Aerospace Carbon Solutions LLC
Most cited
By later US patents
- Method for manufacturing a porous ceramic scaffold having an organic/inorganic hybrid coating layer containing a bioactive factor777US 8,734,831 B2Snu R&Db Foundation · 2014
- Lithium ion-conductive solid electrolyte containing lithium titanium phosphate169US 4,985,317 AJapan Synthetic Rubber Co., Ltd. · 1991
- Al2O3-Y2O3-ZrO2/HfO2 materials, and methods of making and using the same131US 7,507,268 B23M Innovative Properties Company · 2009
- Non-frangible alumina-silica fibers117US 4,047,965 AMinnesota Mining and Manufacturing Company · 1977
- Method of making amorphous materials and ceramics111US 7,168,267 B23M Innovative Properties Company · 2007