C04B 24/282
Polyurethanes
Official title: {Polyurethanes; Polyisocyanates}
C04B24/282 (Polyurethanes) appears on 36 US grants and 50 published applications in this corpus.
Search patents in C04B- Granted patents
- 36
- Published applications
- 50
- Assignees
- 35
- Inventors
- 165
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 3 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 3 | 2 |
| 2018 | 0 | 3 |
| 2019 | 1 | 4 |
| 2020 | 3 | 3 |
| 2021 | 1 | 5 |
| 2022 | 4 | 6 |
| 2023 | 3 | 0 |
| 2024 | 1 | 4 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multiphase particle, manufacturing process and use thereof13 May 2025US 12,297,149 B2China Petroleum & Chemical Corporation
- Multi-component composition for manufacturing polyurethane/urea cementitious hybrid systems1 Apr 2025US 12,264,104 B2Sika Technology AG
- Mortar containing polyurethane dispersion with ethylene oxide units21 May 2024US 11,987,525 B2Sika Technology AG
- Grouting material for modifying mudstone, preparation method and application thereof10 Oct 2023US 11,780,773 B1China University of Mining and Technology
- Method of application of sliding-ring polymers to enhance elastic properties in oil-well cement19 Sep 2023US 11,760,915 B2Saudi Arabian Oil Company
- Utility materials incorporating a microparticle matrix formed with a setting agent12 Mar 2026US 2026/0071423 A1Akamai Materials, Inc.
- Super-compressible metamaterial concrete and method for making same28 Nov 2024US 2024/0392563 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Utility materials incorporating a microparticle matrix formed with a setting agent13 Jun 2024US 2024/0191499 A1Microsphere Labs LLC
- Isocyanate-amine-based chemical anchor with improved performance, and use thereof23 May 2024US 2024/0166870 A1Hilti Aktiengesellschaft
- Use of a reactive liquid applied roof waterproofing product for producing a roofing membrane21 Mar 2024US 2024/0092696 A1Remmers GmbH
Most cited
By later US patents
- Cement compositions50US 4,127,548 AImperial Chemical Industries PLC · 1978
- Water-dispersible or water-soluble polyurethanes as additives for building materials27US 6,051,634 ABayer Aktiengesellschaft · 2000
- Use of nonionic, water-dispersible polyisocyanates as concrete additives22US 6,007,619 ABayer Aktiengesellschaft · 1999
- Comb-shaped diol, water-soluble polyurethane, and application thereof17US 6,515,050 B1Mitsui Chemicals, Inc. · 2003
- High strength cured cement article and process for manufacturing the same16US 4,939,191 AUbe Industries, Ltd. · 1990