Y02P 40/40
Production or processing of lime
Official title: Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Y02P40/40 (Production or processing of lime) appears on 258 US grants and 223 published applications in this corpus.
Search patents in Y02P- Granted patents
- 258
- Published applications
- 223
- Assignees
- 182
- Inventors
- 453
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 1 |
| 2002 | 4 | 10 |
| 2003 | 4 | 13 |
| 2004 | 5 | 9 |
| 2005 | 3 | 5 |
| 2006 | 3 | 3 |
| 2007 | 7 | 7 |
| 2008 | 3 | 9 |
| 2009 | 6 | 8 |
| 2010 | 3 | 10 |
| 2011 | 7 | 9 |
| 2012 | 3 | 2 |
| 2013 | 7 | 9 |
| 2014 | 13 | 19 |
| 2015 | 7 | 14 |
| 2016 | 9 | 12 |
| 2017 | 9 | 9 |
| 2018 | 8 | 2 |
| 2019 | 5 | 12 |
| 2020 | 4 | 5 |
| 2021 | 8 | 10 |
| 2022 | 4 | 8 |
| 2023 | 8 | 9 |
| 2024 | 5 | 15 |
| 2025 | 11 | 10 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for manufacturing low-phosphorus molten steel9 Jun 2026US 12,649,955 B2Jfe Steel Corporation
- Recovering a caustic solution via calcium carbonate crystal aggregates24 Mar 2026US 12,583,756 B2Carbon Engineering ULC
- Method for reducing combustion temperature and thermal radiation within a lime kiln9 Dec 2025US 12,492,818 B2
- Rotary kiln and method for burning carbonate-containing material, in particular limestone or dolomite2 Sep 2025US 12,405,060 B2S. A. Lhoist Recherche et Developpement
- Rotary kiln and method for burning carbonate-containing material, in particular limestone or dolomite5 Aug 2025US 12,379,160 B2S. A. Lhoist Recherche et Developpement
- Recovering a caustic solution via calcium carbonate crystal aggregates10 Sep 2026US 2026/0265074 A1Carbon Engineering ULC
- Method for calcining carbonated mineral stones in a parallel flow regenerative kiln and implemented kiln23 Jul 2026US 2026/0210631 A1S. A. Lhoist Recherche et Developpment
- A method for removing non-process elements in a kraft pulping process9 Jul 2026US 2026/0193840 A1Valmet Corporation
- Producing Burnt End Products from Natural, Carbonate-Containing, Granular Materials as Starting Raw Materials11 Dec 2025US 2025/0376386 A1Litherm Technologies GmbH
- Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom6 Nov 2025US 2025/0340673 A1GranBio Intellectual Property Holdings, LLC
Most cited
By later US patents
- Nanostructured fillers and carriers316US 6,228,904 B1Nanomaterials Research Corporation · 2001
- Plasma whirl reactor apparatus and methods of use164US 7,622,693 B2Foret Plasma Labs, LLC · 2009
- Nanostructured ion conducting solid electrolytes134US 5,905,000 ANanomaterials Research Corporation · 1999
- Non-spherical nanopowder derived nanocomposites126US 6,916,872 B2NanoProducts Corporation · 2005
- Nanotechnology for drug delivery, contrast agents and biomedical implants110US 6,933,331 B2NanoProducts Corporation · 2005