C04B
Lime, magnesia
Official title: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
C04B (Lime, magnesia) appears on 47,472 US grants and 39,900 published applications in this corpus.
Search patents in C04B- Granted patents
- 47,472
- Published applications
- 39,900
- Assignees
- 12,498
- Inventors
- 79,322
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 509 | 0 |
| 1977 | 528 | 0 |
| 1978 | 564 | 0 |
| 1979 | 357 | 0 |
| 1980 | 561 | 0 |
| 1981 | 550 | 0 |
| 1982 | 499 | 0 |
| 1983 | 523 | 0 |
| 1984 | 572 | 0 |
| 1985 | 614 | 0 |
| 1986 | 561 | 0 |
| 1987 | 619 | 0 |
| 1988 | 699 | 0 |
| 1989 | 882 | 0 |
| 1990 | 872 | 0 |
| 1991 | 1112 | 0 |
| 1992 | 1134 | 0 |
| 1993 | 1058 | 0 |
| 1994 | 1072 | 0 |
| 1995 | 892 | 0 |
| 1996 | 927 | 0 |
| 1997 | 896 | 0 |
| 1998 | 1010 | 0 |
| 1999 | 950 | 0 |
| 2000 | 816 | 0 |
| 2001 | 941 | 275 |
| 2002 | 920 | 981 |
| 2003 | 966 | 1245 |
| 2004 | 912 | 1353 |
| 2005 | 685 | 1396 |
| 2006 | 716 | 1377 |
| 2007 | 702 | 1409 |
| 2008 | 704 | 1430 |
| 2009 | 741 | 1677 |
| 2010 | 1073 | 1748 |
| 2011 | 1067 | 1664 |
| 2012 | 1111 | 1615 |
| 2013 | 1207 | 1567 |
| 2014 | 1231 | 1613 |
| 2015 | 1264 | 1707 |
| 2016 | 1276 | 1696 |
| 2017 | 1321 | 1753 |
| 2018 | 1310 | 1742 |
| 2019 | 1447 | 1888 |
| 2020 | 1474 | 1839 |
| 2021 | 1282 | 1800 |
| 2022 | 1321 | 1801 |
| 2023 | 1351 | 1801 |
| 2024 | 1381 | 1852 |
| 2025 | 1333 | 1518 |
| 2026 | 959 | 1153 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- C04B 35/00Shaped ceramic products characterised by their composition24,588
- C04B 2235/00Aspects relating to ceramic starting mixtures or sintered ceramic productsIndexing code14,805
- C04B 2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised byIndexing code10,872
- C04B 28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the9,269
- C04B 41/00After-treatment of mortars, concrete, artificial stone or ceramics7,488
- C04B 38/00Porous mortars, concrete, artificial stone or ceramic ware4,281
- C04B 2237/00Aspects relating to ceramic laminates or to joining of ceramic articles withIndexing code4,201
- C04B 2103/00Function or property of ingredients for mortars, concrete or artificial stoneIndexing code3,353
All 28 main groupsShow fewer
- C04B 24/00Use of organic materials as active ingredients for mortars, concrete or artificial3,109
- C04B 40/00Processes, in general, for influencing or modifying the properties of mortars, concrete2,752
- C04B 37/00Joining burned ceramic articles with other burned ceramic articles or other articles2,718
- C04B 14/00Use of inorganic materials as fillers2,636
- C04B 26/00Compositions of mortars, concrete or artificial stone, containing only organic binders2,214
- C04B 18/00Use of agglomerated or waste materials or refuse as fillers for mortars2,025
- C04B 7/00Hydraulic cements1,910
- C04B 20/00Use of materials as fillers for mortars, concrete or artificial stone according1,873
- C04B 22/00Use of inorganic materials as active ingredients for mortars, concrete or artificial1,081
- C04B 33/00Clay-wares992
- C04B 2201/00Mortars, concrete or artificial stone characterised by specific physical valuesIndexing code788
- C04B 16/00Use of organic materials as fillers736
- C04B 30/00Compositions for artificial stone, not containing binders681
- C04B 2/00Lime, magnesia or dolomite448
- C04B 12/00Cements not provided for in groups c04b7/00 - c04b11/00319
- C04B 11/00Calcium sulfate cements310
- C04B 5/00Treatment of metallurgical slag120
- C04B 32/00Artificial stone not provided for in other groups of this subclass97
- C04B 9/00Magnesium cements or similar cements68
- C04B 2290/00Organisational aspects of production methods, equipment or plantsIndexing code58
Recent patents
- Method for producing a metal-ceramic substrate, and metal-ceramic substrate produced using a method of this type6 Oct 2026US 12,752,377 B2Rogers Germany GmbH
- Method of producing manufactured object and manufactured object6 Oct 2026US 12,752,457 B2Canon Kabushiki Kaisha
- Lanthanum/molybdenum composite oxide, antibacterial sintered compact, and antiviral sintered compact6 Oct 2026US 12,753,084 B2Niterra Co., Ltd.
- Low-cost four-element system cementitious material, preparation method and application thereof6 Oct 2026US 12,753,115 B2University of Science and Technology Beijing
- Method for manufacturing fiber composite for reinforcing concrete, and concrete comprising fiber composite manufactured thereby6 Oct 2026US 12,753,116 B2
- Rapid-set construction material for 3d printing of sustainable infrastructure8 Oct 2026US 2026/0307293 A1Oregon State University
- Building boards and methods for manufacturing same8 Oct 2026US 2026/0307294 A1CertainTeed Gypsum, Inc.
- Lime and hydraulic cement manufacture by electrolysis using hyaloclastite or lava, carbon mineralization by hyaloclastite or lava electrolysis and method of making and using same8 Oct 2026US 2026/0308006 A1Greencraft LLC
- Cementitous compositions for reducing efflorescence8 Oct 2026US 2026/0308051 A1Tremco Cpg Inc.
- Method of processing roadway material to prevent or reduce cracking and/or deterioration8 Oct 2026US 2026/0308052 A1
Most cited
By later US patents
- Fast-setting latex coatings and formulations1,019US 6,251,485 B1The Dow Chemical Company · 2001
- 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
- Non-fused aluminum oxide-based abrasive mineral607US 4,314,827 AMinnesota Mining and Manufacturing Company · 1982
- Fabricating multi-part assemblies597US 9,815,118 B1Desktop Metal, Inc. · 2017
- Process for converting a metal carbide to carbon by etching in halogens566US 6,579,833 B1The Board of Trustees of the University of Illinois · 2003