C04B 14/365
Gypsum
Official title: {Gypsum (synthetic gypsum C04B18/0445, C04B18/064)}
C04B14/365 (Gypsum) appears on 21 US grants and 17 published applications in this corpus.
Search patents in C04B- Granted patents
- 21
- Published applications
- 17
- Assignees
- 21
- Inventors
- 81
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 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 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 6 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 2 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gypsum wallboard having multiple blended surfactants28 Apr 2026US 12,612,334 B2Knauf Gips KG
- Lightweight aggregate-based non-steam-cured high-performance pipe culvert and preparation method thereof9 Sep 2025US 12,410,099 B1Kunming Shunhong New Materials Co., Ltd
- Crack-resistant ultra-high performance concrete for underground engineering in water-rich strata, preparation method, and application thereof18 Mar 2025US 12,252,444 B1Shandong University
- Method of producing a gypsum slurry for forming gypsum products and method of manufacturing a gypsum product16 Jul 2024US 12,036,561 B2Knauf Gips KG
- Hydraulic composition for additive manufacturing device, and process for producing casting mold23 May 2023US 11,655,190 B2Taiheiyo Cement Corporation
- Concrete recycling8 Oct 2026US 2026/0308059 A1
- Microporous powder composition, use thereof and insulation product24 Sep 2026US 2026/0285751 A1Prtc NV
- Laminated composite wall panels and method of manufacture11 Jun 2026US 2026/0160063 A1Hydroblok, Inc.
- Synthetic gypsum filler based joint compound with low coefficient of friction19 Jun 2025US 2025/0197283 A1United States Gypsum Company
- Gypsum filler based joint compound with low coefficient of friction19 Jun 2025US 2025/0198167 A1United States Gypsum Company
Most cited
By later US patents
- Mineral wool-free acoustical tile composition68US 5,395,438 AUSG Interiors, Inc. · 1995
- Gypsum compositions65US 4,174,230 AIdemitsu Kosan Co., Ltd. · 1979
- Plasticised gypsum composition62US 5,344,490 AAccuflex Products, Inc. · 1994
- Method for continuously producing molded members from a mixture of gypsum and fibrous material49US 4,942,003 A"Wurtex" Maschinenbau Hofmann GmbH & Co. · 1990
- Mica-free joint compound20US 4,286,995 ANational Gypsum Company · 1981