B28B 17/023
Conditioning gypsum
Official title: {Conditioning gypsum}
B28B17/023 (Conditioning gypsum) appears on 31 US grants and 35 published applications in this corpus.
Search patents in B28B- Granted patents
- 31
- Published applications
- 35
- Assignees
- 25
- Inventors
- 85
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 2 |
| 2017 | 0 | 3 |
| 2018 | 2 | 3 |
| 2019 | 1 | 1 |
| 2020 | 4 | 2 |
| 2021 | 1 | 4 |
| 2022 | 3 | 1 |
| 2023 | 2 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wallboard slurry mixer configured for reducing water:stucco ratio3 Mar 2026US 12,564,984 B2Knauf Gips KG
- Gypsum fiberboard panel as well as method and apparatus for the production of a gypsum fiberboard panel19 Sep 2023US 11,759,972 B2James Hardie Europe GmbH
- Devices and methods for building panel deformation23 May 2023US 11,654,595 B2Tapered End, LP
- Gypsum slurry mixer output canister9 Aug 2022US 11,407,145 B2United States Gypsum Company
- Mixer rotor pin with hole31 May 2022US 11,344,854 B2Knauf Gips KG
- Hardened gypsum body, and preparation method therefor and use thereof11 Jun 2026US 2026/0158703 A1Hubei Juhai Environmental Technology Co., Ltd.
- Process and System for the Calcination of Gypsum20 Nov 2025US 2025/0353789 A1Knauf Gips KG
- Extruder for Producing Gypsum Moulded Articles, Process for Manufacturing Gypsum-Based Articles and Gypsum-Based Articles13 Nov 2025US 2025/0345967 A1Knauf Gips KG
- Pretreatment mixing and stirring device, gypsum slurry manufacturing apparatus, building board manufacturing apparatus, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, building board manufacturing method28 Aug 2025US 2025/0269558 A1Yoshino Gypsum Co., Ltd.
- Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto5 Dec 2024US 2024/0400456 A1United States Gypsum Company
Most cited
By later US patents
- Method of manufacturing fiber gypsum board73US 5,342,566 ACarl Schenck AG · 1994
- Method of producing a gypsum plaster board66US 4,392,896 ASakakibara Sangyo Kabushiki Kaisha · 1983
- Process and apparatus for producing fiber-reinforced plaster plates55US 5,520,779 ABabcock BSH Aktiengesellschaft Vormals Buttner-Schilde-Haas AG · 1996
- Method for continuously producing molded members from a mixture of gypsum and fibrous material49US 4,942,003 A"Wurtex" Maschinenbau Hofmann GmbH & Co. · 1990
- Method of manufacturing multilayer plasterboard and apparatus therefor49US 5,714,032 ABPB Industries Public Limited Company · 1998