C04B 2/02
Lime
Official title: Lime {(obtaining Ca(OH)2 otherwise than by simple slaking of quick lime C01F11/02)}
C04B2/02 (Lime) appears on 196 US grants and 166 published applications in this corpus.
Search patents in C04B- Granted patents
- 196
- Published applications
- 166
- Assignees
- 128
- Inventors
- 376
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 9 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 3 |
| 2004 | 0 | 5 |
| 2005 | 2 | 1 |
| 2006 | 1 | 8 |
| 2007 | 3 | 5 |
| 2008 | 6 | 2 |
| 2009 | 1 | 3 |
| 2010 | 2 | 1 |
| 2011 | 1 | 8 |
| 2012 | 3 | 5 |
| 2013 | 7 | 12 |
| 2014 | 6 | 3 |
| 2015 | 6 | 10 |
| 2016 | 7 | 5 |
| 2017 | 6 | 8 |
| 2018 | 11 | 12 |
| 2019 | 11 | 14 |
| 2020 | 9 | 9 |
| 2021 | 10 | 10 |
| 2022 | 11 | 8 |
| 2023 | 3 | 5 |
| 2024 | 3 | 11 |
| 2025 | 9 | 12 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low viscosity milk of lime15 Sep 2026US 12,735,354 B2S. A. Lhoist Recherche et Developpment
- Apparatus and process for calcining feed material30 Jun 2026US 12,668,535 B2Air Products and Chemicals, Inc.
- Hybrid calcium oxide hydration and hydrated lime slurry preparation system14 Apr 2026US 12,599,882 B1
- Process for manufacturing a sorbent for a flue gas treatment process, sorbent and use of said sorbent in such flue gas treatment process3 Mar 2026US 12,564,825 B2S. A. Lhoist Recherche et Developpement
- Method for stabilizing wellbore, stabilized wellbore and wellbore stabilizing fluid3 Feb 2026US 12,540,268 B2King Fahd University of Petroleum and Minerals
- 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
- Calcination systems, calcination methods and method and system for calcination and causticization10 Sep 2026US 2026/0265124 A1Limearc Process AB
- Calcination apparatus and processes9 Jul 2026US 2026/0192270 A1The University of Adelaide
- Method for endothermically reacting solid and method for producing oxide9 Jul 2026US 2026/0193093 A1Ashidachi Lime Co., Ltd.
- System and method for construction material1 Jan 2026US 2026/0001810 A1
Most cited
By later US patents
- Process for purifying exhaust gas using modified calcium hydroxide80US 5,618,508 AFTU GmbH Technische Entwicklung und Forschung Im Umweltschutz · 1997
- Method of transforming sludge into ecologically acceptable solid material63US 4,079,003 A1978
- Highly reactive reagents and compositions for purifying exhaust gases and wastewater, production and use thereof56US 5,502,021 AWalhalla-Kalk Entwicklungs-Und Vertriebsgesellschaft · 1996
- Method of preparing hydrated lime37US 5,223,239 AResearch Corporation Technologies, Inc. · 1993
- Process for producing calcium hydroxide34US 4,636,379 ARheinische Kalksteinwerke GmbH · 1987