C04B 28/147
Beta-hemihydrate
Official title: {beta-hemihydrate}
C04B28/147 (Beta-hemihydrate) appears on 71 US grants and 68 published applications in this corpus.
Search patents in C04B- Granted patents
- 71
- Published applications
- 68
- Assignees
- 36
- Inventors
- 178
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 2 |
| 2003 | 2 | 2 |
| 2004 | 3 | 5 |
| 2005 | 3 | 4 |
| 2006 | 2 | 1 |
| 2007 | 2 | 2 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 4 | 2 |
| 2011 | 2 | 5 |
| 2012 | 4 | 2 |
| 2013 | 2 | 2 |
| 2014 | 5 | 4 |
| 2015 | 2 | 5 |
| 2016 | 1 | 1 |
| 2017 | 4 | 4 |
| 2018 | 4 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 5 |
| 2023 | 0 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plaster formula with increased porosity2 Jun 2026US 12,643,818 B2Knauf Gips KG
- Gypsum based building material2 Jun 2026US 12,643,823 B2Knauf Gips KG
- Use of a hydraulic binder containing calcium aluminate for the production of a construction material12 May 2026US 12,623,963 B2ARDEX Group GmbH
- Low-cost, effective phosphate-based lime bucking inhibitor17 Feb 2026US 12,552,713 B2Knauf Gips KG
- Method for the manufacture of hydraulic binders from water treatment residuals15 Apr 2025US 12,275,673 B2ARDEX Group GmbH
- Gypsum boards and methods of making them25 Jun 2026US 2026/0176201 A1CertainTeed Gypsum, Inc.
- Hardened gypsum body, and preparation method therefor and use thereof11 Jun 2026US 2026/0158703 A1Hubei Juhai Environmental Technology Co., Ltd.
- Plasterboard and manufacture thereof5 Mar 2026US 2026/0062358 A1Saint-Gobain Placo
- Rapid setting, water durable binder composition16 Jan 2025US 2025/0019307 A1United States Gypsum Company
- Similar material for rock slope model test under water-rock interaction, and preparation method and use thereof21 Nov 2024US 2024/0385093 A1Wuhan University
Most cited
By later US patents
- Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it194US 6,342,284 B12002
- Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it150US 6,632,550 B1United States Gypsum Company · 2003
- Ready-mixed setting type joint compound115US 5,746,822 AUnited States Gypsum Company · 1998
- Durable porous article of manufacture and a process to create same79US 6,443,258 B1AWI Licensing LLC · 2002
- Composite structure with foamed cementitious layer78US 6,613,424 B1AWI Licensing LLC · 2003