C04B 2235/443
Nitrates or nitrites
C04B2235/443 (Nitrates or nitrites) appears on 312 US grants and 399 published applications in this corpus.
Search patents in C04B- Granted patents
- 312
- Published applications
- 399
- Assignees
- 283
- Inventors
- 1,116
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 6 | 4 |
| 2003 | 5 | 5 |
| 2004 | 4 | 15 |
| 2005 | 2 | 8 |
| 2006 | 9 | 8 |
| 2007 | 6 | 10 |
| 2008 | 3 | 15 |
| 2009 | 5 | 12 |
| 2010 | 11 | 28 |
| 2011 | 11 | 25 |
| 2012 | 16 | 29 |
| 2013 | 13 | 21 |
| 2014 | 15 | 26 |
| 2015 | 16 | 24 |
| 2016 | 16 | 19 |
| 2017 | 20 | 21 |
| 2018 | 21 | 22 |
| 2019 | 14 | 19 |
| 2020 | 26 | 11 |
| 2021 | 15 | 23 |
| 2022 | 11 | 12 |
| 2023 | 10 | 8 |
| 2024 | 7 | 14 |
| 2025 | 14 | 8 |
| 2026 | 2 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ceramic article, semiconductor apparatus for manufacturing a semiconductor structure and method of manufacturing a ceramic article25 Aug 2026US 12,715,816 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Ceramic body and method for producing same, heater element, heater unit, heater system as well as purification system24 Feb 2026US 12,559,425 B2NGK Insulators, Ltd.
- Fe2TiO5/Fe1.766O3/TiO2/CoFe2O4/C nanocomposite and method of preparation thereof7 Oct 2025US 12,435,005 B1Imam Mohammad Ibn Saud Islamic University
- Ceramic powder, sintered body and battery7 Oct 2025US 12,438,184 B2Daiichi Kigenso Kagaku Kogyo Co., Ltd.
- Sol-gel material, and use thereof16 Sep 2025US 12,415,735 B2Technological University Dublin
- Sintering additives for improved microstructure control8 Oct 2026US 2026/0308070 A1UT-Battelle, LLC
- Self-assembled soft magnetic ferrite nanocomposite materials and passive components and methods of making same1 Oct 2026US 2026/0296983 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Alpha alumina-based ceramic material and methods of making same17 Sep 2026US 2026/0275179 A13M Innovative Properties Company
- Colourable translucent white ceramic compound based on a frit comprising calcium and sodium27 Aug 2026US 2026/0250203 A1TheSize Surfaces, S.L.
- Multi-doped garnet electrolytes27 Aug 2026US 2026/0253946 A1Ion Storage Systems, Inc.
Most cited
By later US patents
- Ceramic aggregate particles158US 6,881,483 B23M Innovative Properties Company · 2005
- Non-frangible alumina-silica fibers117US 4,047,965 AMinnesota Mining and Manufacturing Company · 1977
- Agglomerate abrasive grain and a method of making the same88US 6,790,126 B23M Innovative Properties Company · 2004
- Ceramic dental implant72US 4,321,042 A1982
- Nanoscale corundum powders, sintered compacts produced from these powders and method for producing the same68US 7,022,305 B2Leibniz-Institut fuer Neue Materialien gemeinnuetzige GmbH · 2006