C03C 11/002
Hollow glass particles
Official title: {Hollow glass particles}
C03C11/002 (Hollow glass particles) appears on 137 US grants and 113 published applications in this corpus.
Search patents in C03C- Granted patents
- 137
- Published applications
- 113
- Assignees
- 89
- Inventors
- 310
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 5 |
| 2005 | 1 | 3 |
| 2006 | 2 | 8 |
| 2007 | 0 | 2 |
| 2008 | 2 | 2 |
| 2009 | 1 | 3 |
| 2010 | 5 | 2 |
| 2011 | 4 | 2 |
| 2012 | 2 | 5 |
| 2013 | 1 | 3 |
| 2014 | 0 | 2 |
| 2015 | 2 | 8 |
| 2016 | 3 | 5 |
| 2017 | 8 | 9 |
| 2018 | 3 | 8 |
| 2019 | 5 | 8 |
| 2020 | 3 | 3 |
| 2021 | 2 | 4 |
| 2022 | 1 | 5 |
| 2023 | 0 | 5 |
| 2024 | 5 | 10 |
| 2025 | 2 | 4 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Porous structure such as for filters, and making the same21 Jul 2026US 12,685,951 B2Corning Incorporated
- Hollow spherical glass particles9 Jun 2026US 12,649,679 B2Omya International AG
- Glass filler powder5 May 2026US 12,617,933 B2Nippon Electric Glass Co., Ltd.
- Glass bubbles and articles therefrom28 Apr 2026US 12,612,330 B23M Innovative Properties Company
- Expandable silica particles and methods for making and using the same17 Mar 2026US 12,577,150 B2Valunor AG
- Expandable silica particles and methods for making and using the same2 Jul 2026US 2026/0184620 A1Valunor AG
- Devices for manufacturing hollow spherical glass particles21 May 2026US 2026/0138910 A1Omya International AG
- Porous structure such as for filters, and making the same1 Jan 2026US 2026/0001016 A1Corning Incorporated
- Light weight substrate with glass bubble skeleton having mixed porosity for carbon capture and method of making18 Dec 2025US 2025/0382218 A1Corning Incorporated
- Sample Spreading and Loading Layer for Dry Slide20 Mar 2025US 2025/0091044 A1IDEXX Laboratories, Inc.
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
- Hollow porous microspheres containing biocatalyst137US 4,743,545 A1988
- Glass bubbles of increased collapse strength134US 4,391,646 AMinnesota Mining and Manufacturing Company · 1983