C03B 2201/07
Impurity concentration specified
C03B2201/07 (Impurity concentration specified) appears on 207 US grants and 236 published applications in this corpus.
Search patents in C03B- Granted patents
- 207
- Published applications
- 236
- Assignees
- 68
- Inventors
- 475
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 7 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 4 |
| 2002 | 14 | 22 |
| 2003 | 11 | 15 |
| 2004 | 15 | 20 |
| 2005 | 9 | 19 |
| 2006 | 12 | 15 |
| 2007 | 4 | 8 |
| 2008 | 4 | 8 |
| 2009 | 10 | 9 |
| 2010 | 4 | 12 |
| 2011 | 10 | 6 |
| 2012 | 7 | 12 |
| 2013 | 4 | 4 |
| 2014 | 9 | 9 |
| 2015 | 8 | 8 |
| 2016 | 3 | 9 |
| 2017 | 8 | 7 |
| 2018 | 5 | 5 |
| 2019 | 4 | 12 |
| 2020 | 2 | 7 |
| 2021 | 2 | 2 |
| 2022 | 9 | 4 |
| 2023 | 3 | 4 |
| 2024 | 1 | 7 |
| 2025 | 2 | 4 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Titania-silica glass with uniform hydroxyl concentration11 Aug 2026US 12,703,655 B2Corning Incorporated
- Method for making halogen doped optical element26 May 2026US 12,637,384 B2Corning Incorporated
- Cleaning step to remove metals or metal oxides from porous glass body19 May 2026US 12,630,459 B2Corning Incorporated
- Optical fiber glass preform and method for manufacturing optical fiber glass preform7 Apr 2026US 12,595,203 B2Shin-Etsu Chemical Co., Ltd.
- Method for producing crystallized glass member having curved shape3 Mar 2026US 12,565,440 B2Kabushiki Kaisha Ohara
- Titania-silica glass with uniform hydroxyl concentration8 Oct 2026US 2026/0308039 A1Corning Incorporated
- Homogenous silica-titania glass21 May 2026US 2026/0140435 A1Corning Incorporated
- Homogenous silica-titania glass21 May 2026US 2026/0140436 A1Corning Incorporated
- Optical fiber with reduced attenuation due to reduced absorption contribution5 Mar 2026US 2026/0063835 A1Corning Incorporated
- Silica glass porous body and manufacturing method therefor25 Dec 2025US 2025/0388508 A1AGC Inc.
Most cited
By later US patents
- Film coated optical lithography elements and method of making76US 6,466,365 B1Corning Incorporated · 2002
- Optical member of synthetic quartz glass for excimer lasers and method for producing same63US 5,364,433 AShin-Etsu Quartz Products Co., Ltd. · 1994
- Optical members and blanks or synthetic silica glass and method for their production62US 5,086,352 AHeraeus Quarzglas GmbH & Co.KG · 1992
- Optical member made of high-purity and transparent synthetic silica glass and method for production thereof or blank thereof61US 5,410,428 AHeraeus Quarzglas GmbH & Co.KG · 1995
- Synthetic silica glass optical material having high resistance to laser induced damage48US 7,534,733 B2Corning Incorporated · 2009