C04B 38/009
Porous or hollow ceramic granular materials
Official title: {Porous or hollow ceramic granular materials, e.g. microballoons (C04B18/027, C04B20/002 take precedence)}
C04B38/009 (Porous or hollow ceramic granular materials) appears on 255 US grants and 275 published applications in this corpus.
Search patents in C04B- Granted patents
- 255
- Published applications
- 275
- Assignees
- 209
- Inventors
- 666
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 9 |
| 2003 | 4 | 8 |
| 2004 | 3 | 13 |
| 2005 | 4 | 13 |
| 2006 | 8 | 16 |
| 2007 | 2 | 9 |
| 2008 | 6 | 10 |
| 2009 | 7 | 8 |
| 2010 | 13 | 17 |
| 2011 | 12 | 7 |
| 2012 | 7 | 12 |
| 2013 | 8 | 8 |
| 2014 | 3 | 9 |
| 2015 | 7 | 14 |
| 2016 | 12 | 11 |
| 2017 | 12 | 13 |
| 2018 | 11 | 6 |
| 2019 | 10 | 19 |
| 2020 | 11 | 18 |
| 2021 | 5 | 7 |
| 2022 | 9 | 14 |
| 2023 | 11 | 13 |
| 2024 | 8 | 10 |
| 2025 | 6 | 3 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High filtration efficiency particulate filters having bimodal pore size distribution made from beads with open porosity11 Aug 2026US 12,702,946 B2Corning Incorporated
- Carbon-ceramic composites, electrode comprising the same and secondary battery comprising the electrode12 May 2026US 12,626,959 B2SK On Co., Ltd.
- Expandable acoustic reinforcement member and manufacturing method therefor and use thereof12 May 2026US 12,627,920 B2SSI New Material (Zhenjiang) Co., Ltd.
- Ceramic articles made from ceramic beads with open porosity24 Mar 2026US 12,583,800 B2Corning Incorporated
- Porous inorganic particle, and composite filler, product using the same24 Feb 2026US 12,558,460 B2LG Chem.Ltd.
- Carbon-ceramic composites, electrode comprising the same and secondary battery comprising the electrode20 Aug 2026US 2026/0245988 A1SK On Co., Ltd.
- Method for Producing High Strength Ceramic Particles, and Method for Producing Micro-Porous Spherical Particles for Aerosol Generator using Benard Cell Phenomenon13 Aug 2026US 2026/0234062 A1EM-TECH Co., Ltd.
- Spherical support for catalysts based on metal oxides of group ivb and related manufacturing process9 Jul 2026US 2026/0192282 A1Exacer S.R.L.
- Lightweight ceramics2 Jul 2026US 2026/0184639 A1ImerTech SAS
- Ceramic articles made from ceramic beads with open porosity2 Jul 2026US 2026/0184643 A1Corning Incorporated
Most cited
By later US patents
- Method for producing granulated material182US 6,210,625 B1Mikuni Corporation · 2001
- Method for making abrasive grain and abrasive articles172US 5,776,214 AMinnesota Mining and Manufacturing Company · 1998
- Method for making abrasive grain and abrasive articles163US 5,779,743 AMinnesota Mining and Manufacturing Company · 1998
- Method for making abrasive grain using impregnation, and abrasive articles150US 6,206,942 B1Minnesota Mining and Manufacturing Company · 2001
- Process for producing hollow spherical particles and sponge-like particles composed therefrom124US 4,775,598 ANorddeutsche Affinerie Akitiengesellschaft · 1988