C04B 35/63456
Polyurethanes
Official title: {Polyurethanes; Polyisocyanates}
C04B35/63456 (Polyurethanes) appears on 88 US grants and 110 published applications in this corpus.
Search patents in C04B- Granted patents
- 88
- Published applications
- 110
- Assignees
- 98
- Inventors
- 310
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 5 | 10 |
| 2004 | 2 | 4 |
| 2005 | 3 | 1 |
| 2006 | 1 | 1 |
| 2007 | 3 | 4 |
| 2008 | 3 | 2 |
| 2009 | 2 | 3 |
| 2010 | 1 | 8 |
| 2011 | 4 | 4 |
| 2012 | 2 | 15 |
| 2013 | 7 | 5 |
| 2014 | 5 | 5 |
| 2015 | 5 | 1 |
| 2016 | 2 | 0 |
| 2017 | 2 | 3 |
| 2018 | 2 | 4 |
| 2019 | 2 | 9 |
| 2020 | 3 | 9 |
| 2021 | 6 | 6 |
| 2022 | 4 | 4 |
| 2023 | 1 | 3 |
| 2024 | 3 | 2 |
| 2025 | 5 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lithography-based process for the production of transparent ceramic bodies with at least two zones of different composition and transparent ceramic bodies thus obtained17 Feb 2026US 12,552,717 B2Consiglio Nazionale Delle Ricerche
- Method for preparing infrared radiation ceramic material19 Aug 2025US 12,391,618 B2Chongqing Institute of East China Normal University
- Method for preparing boron carbide material12 Aug 2025US 12,384,725 B2Chongqing Institute of East China Normal University
- Chemical looping carrier compositions, binders, and related methods13 May 2025US 12,296,384 B1
- Interface material formulations for additive fabrication18 Feb 2025US 12,227,461 B2Desktop Metal, Inc.
- Composition, sheet-like product, multilayer body, method for manufacturing composition, and chip-type multilayer electronic component26 Mar 2026US 2026/0085012 A1Murata Manufacturing Co., Ltd.
- Composite phosphor ceramic optical fiber with high luminous efficiency and high color rendering index, and preparation method therefor30 Oct 2025US 2025/0334731 A1Jiangsu Normal University
- Binder component for a feedstock compound for use in a shaping and sintering process, particulate feedstock compound, and shaping and sintering process1 May 2025US 2025/0136814 A1Headmade Materials GmbH
- Method for manufacturing a brake pad preform and a brake pad, and related brake pad21 Nov 2024US 2024/0384770 A1Brembo S.p.A.
- Gradient structure cubic boron nitride composite sheet and preparation method thereof11 Jul 2024US 2024/0228384 A1Central South University
Most cited
By later US patents
- Rigid porous carbon structures, methods of making, methods of using and products containing same143US 6,099,965 AHyperion Catalysis International, Inc. · 2000
- Non-spherical nanopowder derived nanocomposites126US 6,916,872 B2NanoProducts Corporation · 2005
- Nanotechnology for drug delivery, contrast agents and biomedical implants110US 6,933,331 B2NanoProducts Corporation · 2005
- Rigid porous carbon structures, methods of making, methods of using and products containing same62US 6,432,866 B1Hyperion Catalysis International, Inc. · 2002
- Method of optimizing composite preparation for electrical properties: maximum capacitance electrodes39US 5,096,663 AAuburn University · 1992