C04B 2235/3208
Calcium oxide or oxide-forming salts thereof
Official title: Calcium oxide or oxide-forming salts thereof, e.g. lime
C04B2235/3208 (Calcium oxide or oxide-forming salts thereof) appears on 2,485 US grants and 3,156 published applications in this corpus.
Search patents in C04B- Granted patents
- 2,485
- Published applications
- 3,156
- Assignees
- 1,093
- Inventors
- 5,723
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 14 | 0 |
| 1992 | 15 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 15 | 0 |
| 1998 | 9 | 0 |
| 1999 | 14 | 0 |
| 2000 | 20 | 0 |
| 2001 | 22 | 7 |
| 2002 | 28 | 35 |
| 2003 | 39 | 92 |
| 2004 | 56 | 103 |
| 2005 | 59 | 112 |
| 2006 | 77 | 118 |
| 2007 | 71 | 151 |
| 2008 | 67 | 122 |
| 2009 | 92 | 161 |
| 2010 | 113 | 193 |
| 2011 | 114 | 164 |
| 2012 | 126 | 151 |
| 2013 | 124 | 132 |
| 2014 | 129 | 149 |
| 2015 | 115 | 119 |
| 2016 | 123 | 118 |
| 2017 | 124 | 125 |
| 2018 | 96 | 116 |
| 2019 | 105 | 144 |
| 2020 | 90 | 132 |
| 2021 | 95 | 144 |
| 2022 | 108 | 146 |
| 2023 | 109 | 141 |
| 2024 | 85 | 136 |
| 2025 | 110 | 78 |
| 2026 | 51 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Synthetic mineral composition, a method of forming a synthetic mineral composition and uses of a synthetic mineral composition15 Sep 2026US 12,735,360 B2Sibelco Nederland N.V.
- Method of making vacuum insulated panel25 Aug 2026US 12,715,199 B2LuxWall, Inc.
- Batch for the production of a coarse ceramic refractory basic product, such product and method for its production, lining of an industrial furnace and industrial furnace25 Aug 2026US 12,715,815 B2Refratechnik Holding GmbH
- Piezoelectric materials and piezoelectric devices25 Aug 2026US 12,721,042 B2Beijing BOE Technology Development Co., Ltd.
- Ceramic material, powder and layer system11 Aug 2026US 12,703,665 B2Siemens Energy Global GmbH & Co. KG
- Process for improving flash sintering of ceramics and improved ceramics8 Oct 2026US 2026/0308072 A1The Regents of the University of Colorado, a body corporate
- Hearth mixture for disposing on the hearth bottom of an electric arc furnace, use of a hearth mixture for disposing on the hearth bottom of an electric arc furnace, electric arc furnace, method for disposing a hearth mixture on the hearth bottom of an electric arc furnace and use of magnesia spinel used in a lining of a cement rotary kiln24 Sep 2026US 2026/0287256 A1Refractory Intellectual Property GmbH & Co.KG
- Ferrite composition and magnetic core comprising same17 Sep 2026US 2026/0279633 A1LG Innotek Co., Ltd.
- Method for producing a capacitor element comprising a dielectric ceramic film, slip for producing a dielectric ceramic film, and capacitor element comprising a dielectric ceramic film10 Sep 2026US 2026/0269125 A1Technische Universität Darmstadt
- Composition for ceramic speaker, ceramic speaker manufacturing method using same, and ceramic speaker using same10 Sep 2026US 2026/0271622 A1Amosense Co., Ltd.
Most cited
By later US patents
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength334US 6,601,662 B2Grant Prideco, L.P. · 2003
- Nanocrystalline apatites and composites, prostheses incorporating them, and method for their production242US 6,013,591 AMassachusetts Institute of Technology · 2000
- Long persistent phosphors and persistent energy transfer technique225US 6,953,536 B2University of Georgia Research Foundation, Inc. · 2005
- Method for fabricating artificial bone implant green parts218US 5,639,402 A1997