C04B 24/2623
Polyvinylalcohols
Official title: {Polyvinylalcohols; Polyvinylacetates}
C04B24/2623 (Polyvinylalcohols) appears on 139 US grants and 184 published applications in this corpus.
Search patents in C04B- Granted patents
- 139
- Published applications
- 184
- Assignees
- 103
- Inventors
- 466
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 3 |
| 2004 | 3 | 6 |
| 2005 | 2 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 5 |
| 2008 | 1 | 5 |
| 2009 | 1 | 2 |
| 2010 | 4 | 3 |
| 2011 | 2 | 6 |
| 2012 | 0 | 2 |
| 2013 | 5 | 3 |
| 2014 | 4 | 11 |
| 2015 | 1 | 9 |
| 2016 | 8 | 8 |
| 2017 | 9 | 11 |
| 2018 | 10 | 10 |
| 2019 | 9 | 9 |
| 2020 | 7 | 14 |
| 2021 | 10 | 13 |
| 2022 | 10 | 18 |
| 2023 | 7 | 14 |
| 2024 | 8 | 12 |
| 2025 | 8 | 9 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Double-liquid grouting slurry, its technology and application for super large diameter underwater shield engineering under high water pressure condition22 Sep 2026US 12,741,910 B2China Railway 14th Bureau Group Corporation Limited
- Process for preparing water-redispersible polymer powders for dry formulations of construction materials23 Jun 2026US 12,662,426 B2Wacker Chemie AG
- Admixture composition for the production of lightweight concrete containing polystyrene beads, process for the preparation of the composition and its application9 Jun 2026US 12,649,691 B2“Icl” Innovation Concrete Laboratory KorláToit FelelsséGü TáRasasáG
- Perlite-free, lightweight setting-type joint compound compositions28 Apr 2026US 12,612,336 B2Knauf Gips KG
- Methods and compositions for inhibiting freeze-thaw damage in concrete and cement paste10 Mar 2026US 12,570,577 B2The Regents of the University of Colorado, a body corporate
- Quick-setting magnesium based cement and concrete27 Aug 2026US 2026/0250191 A1ZS2 Technologies Ltd.
- Gypsum boards and methods of making them2 Jul 2026US 2026/0184638 A1CertainTeed Gypsum, Inc.
- Hydrogel-cement composite material18 Jun 2026US 2026/0167569 A1Southeast University
- Method for mitigating the effect of clay in mineral construction materials21 May 2026US 2026/0138922 A1Sika Technology AG
- Full solid-waste micro-expansive concrete and preparation method thereof30 Apr 2026US 2026/0116823 A1Inner Mongolia University of Technology
Most cited
By later US patents
- Method for forming a lightweight cementitious structural product and product formed thereby75US 4,518,652 AUnited States Gypsum Company · 1985
- Cement composition and product74US 4,410,366 AImperial Chemical Industries PLC · 1983
- Gypsum board having polyvinyl alcohol binder in interface layer and method for making the same54US 6,746,781 B2G-P Gypsum Corporation · 2004
- Process for placing cement composition having high strength48US 4,585,486 AHazama-Gumi, Ltd. · 1986
- Composition and method to control cement slurry loss and viscosity48US 5,850,880 AConoco Inc. · 1998