C03C 11/00
Multi-cellular glass
Official title: Multi-cellular glass {; Porous or hollow glass or glass particles}
C03C11/00 (Multi-cellular glass) appears on 508 US grants and 468 published applications in this corpus.
Search patents in C03C- Granted patents
- 508
- Published applications
- 468
- Assignees
- 296
- Inventors
- 1,160
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 10 | 0 |
| 1981 | 7 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 14 | 0 |
| 1988 | 16 | 0 |
| 1989 | 10 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 12 | 0 |
| 1997 | 18 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 2 | 0 |
| 2001 | 10 | 2 |
| 2002 | 7 | 11 |
| 2003 | 7 | 10 |
| 2004 | 5 | 18 |
| 2005 | 6 | 16 |
| 2006 | 7 | 18 |
| 2007 | 11 | 16 |
| 2008 | 5 | 14 |
| 2009 | 6 | 15 |
| 2010 | 11 | 12 |
| 2011 | 9 | 13 |
| 2012 | 11 | 13 |
| 2013 | 8 | 24 |
| 2014 | 13 | 29 |
| 2015 | 15 | 24 |
| 2016 | 15 | 23 |
| 2017 | 22 | 23 |
| 2018 | 16 | 25 |
| 2019 | 16 | 17 |
| 2020 | 12 | 18 |
| 2021 | 8 | 23 |
| 2022 | 10 | 27 |
| 2023 | 15 | 21 |
| 2024 | 17 | 27 |
| 2025 | 16 | 14 |
| 2026 | 13 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Opaque quartz glass and method for producing the same6 Oct 2026US 12,753,112 B2Tosoh Sgm Corporation
- Building materials and components and methods of making the same4 Aug 2026US 12,698,237 B2University of Wyoming
- Porous structure such as for filters, and making the same21 Jul 2026US 12,685,951 B2Corning Incorporated
- Molded body made of opaque quartz glass and method for producing same14 Jul 2026US 12,679,756 B2Heraeus Quarzglas GmbH & Co.KG
- Coated insulation material substrate23 Jun 2026US 12,662,598 B2Pittsburgh Corning Europe NV
- Building materials and components and methods of making the same10 Sep 2026US 2026/0265146 A1University of Wyoming
- Expandable silica particles and methods for making and using the same2 Jul 2026US 2026/0184620 A1Valunor AG
- Decorative enamel for automotive glasses and associated methods2 Jul 2026US 2026/0184624 A1Corning Incorporated
- Polarizing element4 Jun 2026US 2026/0153662 A1Hoya Corporation
- Gypsum cement with reduced permeability28 May 2026US 2026/0146003 A1Owens Corning Intellectual Capital, LLC
Most cited
By later US patents
- Glass microspheres190US 4,789,501 AThe Curators of the University of Missouri · 1988
- Method for making hollow porous microspheres166US 4,671,909 A1987
- Hollow porous microspheres made from dispersed particle compositions150US 5,397,759 A1995
- Bonding of bone to materials presenting a high specific area, porous, silica-rich surface143US 4,171,544 ABoard of Regents, for and on behalf of the University of Florida · 1979
- Hollow porous microspheres containing biocatalyst137US 4,743,545 A1988