C04B 28/14
Containing calcium sulfate cements
Official title: containing calcium sulfate cements {(gypsum-paper plates E04C)}
C04B28/14 (Containing calcium sulfate cements) appears on 1,354 US grants and 1,568 published applications in this corpus.
Search patents in C04B- Granted patents
- 1,354
- Published applications
- 1,568
- Assignees
- 628
- Inventors
- 3,000
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 13 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 18 | 0 |
| 1981 | 16 | 0 |
| 1982 | 7 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 15 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 20 | 0 |
| 1993 | 6 | 0 |
| 1994 | 14 | 0 |
| 1995 | 13 | 0 |
| 1996 | 15 | 0 |
| 1997 | 14 | 0 |
| 1998 | 16 | 0 |
| 1999 | 15 | 0 |
| 2000 | 10 | 0 |
| 2001 | 21 | 2 |
| 2002 | 30 | 16 |
| 2003 | 22 | 32 |
| 2004 | 27 | 46 |
| 2005 | 20 | 37 |
| 2006 | 15 | 54 |
| 2007 | 20 | 37 |
| 2008 | 17 | 63 |
| 2009 | 23 | 55 |
| 2010 | 51 | 49 |
| 2011 | 39 | 59 |
| 2012 | 49 | 57 |
| 2013 | 41 | 56 |
| 2014 | 47 | 64 |
| 2015 | 48 | 68 |
| 2016 | 52 | 82 |
| 2017 | 51 | 87 |
| 2018 | 67 | 73 |
| 2019 | 63 | 76 |
| 2020 | 64 | 80 |
| 2021 | 50 | 56 |
| 2022 | 43 | 83 |
| 2023 | 41 | 83 |
| 2024 | 62 | 113 |
| 2025 | 44 | 79 |
| 2026 | 53 | 61 |
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
- Uncharged clay blocking agent6 Oct 2026US 12,753,119 B2BASF SE
- Method of regeneration of carbonaceous adsorbent and system for carrying out the method15 Sep 2026US 12,734,504 B2Desotec NV
- Air and water barrier building panels15 Sep 2026US 12,734,724 B2Gold Bond Building Products, LLC
- Gypsum board including a coated facing material15 Sep 2026US 12,735,358 B2Gold Bond Building Products, LLC
- Building boards and methods for manufacturing same8 Oct 2026US 2026/0307294 A1CertainTeed Gypsum, Inc.
- Hydraulic composition for ultra-high performance concrete and ultra-high performance grout8 Oct 2026US 2026/0308054 A1Sika Technology AG
- Recycled Drywall Products and Systems8 Oct 2026US 2026/0308057 A1Qualico Developments West Ltd.
- Gypsum Board Including a Gypsum Core with Crystals Having an Enhanced Aspect Ratio1 Oct 2026US 2026/0296963 A1Gold Bond Building Products, LLC
- Composition for adjusting of air pores in building products in the presence of sulfate-based superplasticizers1 Oct 2026US 2026/0296976 A1BASF SE
Most cited
By later US patents
- Composite patterning devices for soft lithography429US 7,195,733 B2The Board of Trustees of the University of Illinois · 2007
- Gypsum-containing product having increased resistance to permanent deformation and method and composition for producing it194US 6,342,284 B12002
- Method of three dimensional printing191US 5,902,441 AZ Corporation · 1999
- Producing foamed gypsum board using a foaming agent blend182US 5,643,510 AUSG Corporation · 1997
- Cementing oil and gas wells using converted drilling fluid181US 4,883,125 AAtlantic Richfield Company · 1989