C03B 2201/32
Doped with aluminium
Official title: doped with aluminium (C03B2201/36 takes precedence)
C03B2201/32 (Doped with aluminium) appears on 146 US grants and 129 published applications in this corpus.
Search patents in C03B- Granted patents
- 146
- Published applications
- 129
- Assignees
- 85
- Inventors
- 391
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 5 |
| 2003 | 4 | 16 |
| 2004 | 7 | 7 |
| 2005 | 5 | 9 |
| 2006 | 3 | 2 |
| 2007 | 2 | 4 |
| 2008 | 4 | 6 |
| 2009 | 5 | 7 |
| 2010 | 2 | 6 |
| 2011 | 3 | 4 |
| 2012 | 2 | 2 |
| 2013 | 5 | 6 |
| 2014 | 7 | 5 |
| 2015 | 5 | 4 |
| 2016 | 4 | 10 |
| 2017 | 7 | 4 |
| 2018 | 3 | 1 |
| 2019 | 4 | 5 |
| 2020 | 2 | 4 |
| 2021 | 7 | 2 |
| 2022 | 0 | 3 |
| 2023 | 1 | 8 |
| 2024 | 2 | 2 |
| 2025 | 3 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cleaning step to remove metals or metal oxides from porous glass body19 May 2026US 12,630,459 B2Corning Incorporated
- Method for producing crystallized glass member having curved shape3 Mar 2026US 12,565,440 B2Kabushiki Kaisha Ohara
- Preform for optical fiber and manufacturing method of optical fiber2 Sep 2025US 12,404,201 B2Kohoku Kogyo Co., Ltd.
- Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber4 Feb 2025US 12,215,048 B2Heraeus Quarzglas GmbH & Co.KG
- Forming and bonding of glass components for portable electronic devices14 Jan 2025US 12,195,379 B2Apple Inc.
- Methods of recycling cullet and fibreglass17 Sep 2026US 2026/0274733 A1Sibelco Nederland N.V.
- Glass-Ceramic Material12 Feb 2026US 2026/0042695 A1Liverpool John Moores University
- Hollow core optical fiber, hollow core optical fiber preform, and method of making the same28 Aug 2025US 2025/0271612 A1Corning Incorporated
- Forming and bonding of glass components for portable electronic devices10 Apr 2025US 2025/0115511 A1Apple Inc.
- Silica glass body manufacturing method and heating device20 Mar 2025US 2025/0091932 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- Optical fiber and method for making such fiber230US 7,313,312 B2Corning Incorporated · 2007
- GRIN fiber lenses160US 6,542,665 B2Lucent Technologies Inc. · 2003
- Method of making fused silica by decomposing siloxanes106US 5,043,002 ACorning Incorporated · 1991
- Method of making fused silica70US 5,152,819 ACorning Incorporated · 1992
- Method of producing optical wave guide fibers67US 3,938,974 A1976