C04B 28/28
Containing organic polyacids
Official title: containing organic polyacids, e.g. polycarboxylate cements {, i.e. ionomeric systems}
C04B28/28 (Containing organic polyacids) appears on 85 US grants and 60 published applications in this corpus.
Search patents in C04B- Granted patents
- 85
- Published applications
- 60
- Assignees
- 64
- Inventors
- 225
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 11 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 2 |
| 2005 | 2 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 4 |
| 2015 | 3 | 6 |
| 2016 | 1 | 3 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 4 | 5 |
| 2020 | 4 | 5 |
| 2021 | 3 | 4 |
| 2022 | 6 | 4 |
| 2023 | 2 | 5 |
| 2024 | 1 | 5 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Glass ionomer cement compostion for dental purposes and method for preparing the same9 Sep 2025US 12,409,107 B2Hass Co., Ltd.
- Environmentally friendly concrete composition of matter and method of forming the same4 Jun 2024US 11,999,656 B2
- Cement chemistries7 Mar 2023US 11,597,678 B2Solidia Technologies, Inc.
- Method of making concrete7 Feb 2023US 11,572,312 B2Macrocement Industries Ltd.
- Use of zinc salts in combination with alkyl amines in cement-based dry mortar mixtures29 Nov 2022US 11,512,026 B2Construction Research & Technology GmbH
- Polymer mortar with sustained absorption function of carbon dioxide and preparation method therefor18 Jun 2026US 2026/0167573 A1Henan Juyan Materials Technology Co., Ltd
- Quick setting aqueous composition comprising polyelectrolyte coacervates and polyphenols25 Dec 2025US 2025/0388788 A1Saint-Gobain Weber France
- Methods to improve the workability of a mineral binder composition comprising at least one mineral binder and additionally recycled powder22 Aug 2024US 2024/0279115 A1Sika Technology AG
- Environmentally Friendly Concrete Composition of Matter and Method of Forming the Same22 Aug 2024US 2024/0279116 A1
- Perlite-based cementitious materials, concrete, and related techniques11 Jul 2024US 2024/0228375 A1Vhsc, Ltd.
Most cited
By later US patents
- Universal water-based medical and dental cement207US 5,154,762 AMinnesota Mining and Manufacturing Company · 1992
- Dilution of drilling fluid in forming cement slurries191US 5,314,022 AShell Oil Company · 1994
- Dental glass ionomer cement composition93US 5,520,725 AGC Corporation · 1996
- Surgical cements81US 4,668,295 AUniversity of Dayton · 1987
- Resin-modified inorganic phosphate cement for solid freeform fabrication72US 7,455,805 B2Hewlett-Packard Development Company, L. P. · 2008