C04B 38/0061
Closed porosity
Official title: {closed porosity}
C04B38/0061 (Closed porosity) appears on 28 US grants and 37 published applications in this corpus.
Search patents in C04B- Granted patents
- 28
- Published applications
- 37
- Assignees
- 34
- Inventors
- 113
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 5 | 5 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 1 | 9 |
| 2023 | 2 | 1 |
| 2024 | 3 | 1 |
| 2025 | 4 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter comprising a silicone carbide separator layer30 Dec 2025US 12,508,552 B2Saint-Gobain Centre De Recherches Et D ' Etudes Europeen
- Porous ceramics and method for producing porous ceramics23 Dec 2025US 12,503,406 B2Chiba Institute of Technology
- Porous refractory cast material, its use and production9 Sep 2025US 12,410,106 B2Vesuvius U S A Corporation
- Decorative panel, and decorative floor covering consisting of said panels1 Jul 2025US 12,345,056 B2i4F Licensing NV
- Ceramic article production method and ceramic article17 Sep 2024US 12,091,362 B2Canon Kabushiki Kaisha
- Chromium oxide refractory object and methods of forming thereof2 Jul 2026US 2026/0184641 A1Saint-Gobain Ceramics & Plastics, Inc.
- Novel daytime passive radiative cooling ceramic with self-cleaning properties and its manufacturing process30 Oct 2025US 2025/0334359 A1Zhengzhou University
- Foamed colloidal silica binder for lightweight refractory casting compositions and method of making it12 Jun 2025US 2025/0187993 A1Magneco/Metrel, Inc.
- Use of closed-pore microspheres of expanded pearlite as a filler for the production of mouldings for the foundry industry23 Jan 2025US 2025/0025932 A1HüTtenes-Albertus Chemische Werke Gesellschaft Mit BeschräNkter Haftung
- Method of forming ceramic fluidic modules with smooth interior surfaces and modules produced9 Jan 2025US 2025/0011246 A1Corning Incorporated
Most cited
By later US patents
- Porous ceramics and method of preparing the same as well as microstrip substrate42US 6,800,360 B2Sumitomo Electric Industries, Ltd. · 2004
- Bearing material of porous SIC having a trimodal pore composition20US 5,762,895 AElektroschmelzwerk Kempton, GmbH · 1998
- Strong, lower density composite concrete building material with foam glass aggregate11US 7,695,560 B12010
- Sintered SiC shaped articles and mechanical packings comprised thereof7US 5,610,110 ACeramiques & Composites S.A. · 1997
- Closed pore ceramic composite article7US 9,447,503 B2United Technologies Corporation · 2016