C04B 18/064
Gypsum
Official title: {Gypsum}
C04B18/064 (Gypsum) appears on 20 US grants and 18 published applications in this corpus.
Search patents in C04B- Granted patents
- 20
- Published applications
- 18
- Assignees
- 8
- Inventors
- 37
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 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 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 3 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 3 |
| 2022 | 0 | 0 |
| 2023 | 2 | 2 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Self-curing fluid solidified soil composite curing agent and its application30 Dec 2025US 12,509,394 B2Tianjin Municipal Engineering Design and Research Institute
- Building materials comprising agglomerated particles1 Apr 2025US 12,264,101 B2Specialty Granules Investments LLC
- High salt gypsum wallboard containing salt absorbents and methods of making same4 Jun 2024US 11,999,658 B2United States Gypsum Company
- Building materials comprising agglomerated particles21 May 2024US 11,987,524 B2Specialty Granules Investments LLC
- Building materials comprising agglomerated particles20 Jun 2023US 11,680,016 B2Specialty Granules Investments LLC
- Process for preparing red mud cement and concrete compositions comprising the red mud cement23 Jul 2026US 2026/0209593 A1St Loarn Group Limited
- Building materials comprising agglomerated particles19 Jun 2025US 2025/0197285 A1Specialty Granules Investments LLC
- Building materials comprising agglomerated particles15 Aug 2024US 2024/0270640 A1Specialty Granules Investments LLC
- Self-curing fluid solidified soil composite curing agent and its application4 Jul 2024US 2024/0217877 A1Tianjin Municipal Engineering Design and Research Institute
- Building materials comprising agglomerated particles31 Aug 2023US 2023/0271883 A1Specialty Granules Investments LLC
Most cited
By later US patents
- Method of making a building material21US 4,501,618 ARheinisch-Westfalisches Elektrizitatswerk AG · 1985
- Hydrogen generation as fuel by use of solar ultraviolet light process19US 4,342,738 A1982
- Process for treating waste sludge from combustion plant desulfurization units and cementitious product of the process16US 4,108,677 A1978
- Noxious-component removal from flue gas and compositions useful therefor14US 4,388,281 A1983
- Method for forming products from a flue gas desulfurization by-product and products formed thereby8US 8,303,842 B2Utter Technology, LLC · 2012