C04B 11/262
Waste gypsum other than phosphogypsum
Official title: {waste gypsum other than phosphogypsum}
C04B11/262 (Waste gypsum other than phosphogypsum) appears on 30 US grants and 26 published applications in this corpus.
Search patents in C04B- Granted patents
- 30
- Published applications
- 26
- Assignees
- 35
- Inventors
- 142
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 5 |
| 2025 | 3 | 2 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low-cost four-element system cementitious material, preparation method and application thereof6 Oct 2026US 12,753,115 B2University of Science and Technology Beijing
- Carbonized brick of recycled concrete powders and preparation method thereof14 Apr 2026US 12,600,058 B2Shandong High-Speed Group Co., Ltd.
- Crystallization method of gypsum9 Sep 2025US 12,410,095 B2Tokuyama Corporation
- Method for reclaiming gypsum from wasted gypsum boards19 Aug 2025US 12,391,613 B2Tokuyama Corporation
- Mineral recovery enhanced desalination (MRED) process for desalination and recovery of commodity minerals18 Feb 2025US 12,227,441 B2UNM Rainforest Innovations
- Concrete recycling8 Oct 2026US 2026/0308059 A1
- Composition for adjusting of air pores in building products in the presence of sulfate-based superplasticizers1 Oct 2026US 2026/0296976 A1BASF SE
- Process for recovering plaster waste and installation for carrying out such a process9 Jul 2026US 2026/0193132 A1Holding Ritleng
- Full solid-waste micro-expansive concrete and preparation method thereof30 Apr 2026US 2026/0116823 A1Inner Mongolia University of Technology
- Method and Plasterboard28 Aug 2025US 2025/0270142 A1
Most cited
By later US patents
- Process and apparatus for producing fiber-reinforced plaster plates55US 5,520,779 ABabcock BSH Aktiengesellschaft Vormals Buttner-Schilde-Haas AG · 1996
- Process for disposal of arsenic salts40US 4,118,243 AWaste Management of Illinois, Inc. · 1978
- Crystalline calcium sulfate dihydrate and process for making same24US 4,183,908 ASouthern California Edison Company · 1980
- Process for gasification of coal and organic solid wastes21US 4,274,839 A1981
- Manufacture of gypsum board from FGD gypsum16US 4,502,901 ANational Gypsum Company · 1985