C04B 22/149
Iron-sulfates
Official title: {Iron-sulfates}
C04B22/149 (Iron-sulfates) appears on 9 US grants and 13 published applications in this corpus.
Search patents in C04B- Granted patents
- 9
- Published applications
- 13
- Assignees
- 11
- Inventors
- 39
- Latest grant
- 9 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 2 | 3 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of manufacturing gypsum board with improved fire resistance9 Jul 2024US 12,031,328 B2Gold Bond Building Products, LLC
- Method of manufacturing gypsum board with improved fire24 May 2022US 11,339,572 B1Gold Bond Building Products, LLC
- Cement additive and method for producing same4 Jan 2022US 11,214,516 B2
- Environmentally sustainable cement composition, its use for inerting dredging sediments/sludges, relative method and apparatus for inerting20 Apr 2021US 10,981,821 B2
- Reducing agent for the soluble chromate content of cement and methods for production thereof19 Aug 2014US 8,808,451 B2Crenox GmbH
- Method of Manufacturing Gypsum Board with Improved Fire Resistance19 Sep 2024US 2024/0309639 A1Gold Bond Building Products, LLC
- Utilization of spent chromia/alumina catalyst for cement production6 Jun 2024US 2024/0182364 A1Sabic Global Technologies B.V.
- Binder composition for soil and solidification treatment method for soil10 Nov 2022US 2022/0355352 A1Rutgers, The State University of New Jersey
- Method of Manufacturing Gypsum Board with Improved Fire Resistance8 Sep 2022US 2022/0282484 A1Gold Bond Building Products, LLC
- Use of an acidic salt of iron (iii) as additive for cement, mortar or concrete28 Apr 2022US 2022/0127195 A1Holcim Technology Ltd
Most cited
By later US patents
- Method for reducing chromate dermatitis9US 4,572,739 A1986
- Dry cement composition8US 4,784,691 AAktieselskabet Aalborg Portland-Cement-Fabrik · 1988
- Method of manufacturing gypsum board with improved fire1US 11,339,572 B1Gold Bond Building Products, LLC · 2022
- Carrier substance for a hydraulic binder1US 6,740,156 B2Ferro Duo GmbH · 2004