C03B 2207/22
Inert gas details
C03B2207/22 (Inert gas details) appears on 40 US grants and 32 published applications in this corpus.
Search patents in C03B- Granted patents
- 40
- Published applications
- 32
- Assignees
- 15
- Inventors
- 92
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 4 | 3 |
| 2003 | 2 | 1 |
| 2004 | 3 | 3 |
| 2005 | 0 | 3 |
| 2006 | 2 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 4 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical fiber preform24 Mar 2026US 12,583,782 B2Shin-Etsu Chemical Co., Ltd.
- Apparatus and method for producing porous glass preform30 Dec 2025US 12,509,387 B2Shin-Etsu Chemical Co., Ltd.
- Apparatus and method for producing porous glass preform6 Jun 2023US 11,667,557 B2Shin-Etsu Chemical Co., Ltd.
- Fabrication method for porous glass base material for optical fiber6 Dec 2022US 11,518,704 B2Shin-Etsu Chemical Co., Ltd.
- Method for producing porous glass deposit for optical fiber10 Nov 2020US 10,829,405 B2Shin-Etsu Chemical Co., Ltd.
- Apparatus and method for producing porous glass preform20 Jul 2023US 2023/0227345 A1Shin-Etsu Chemical Co., Ltd.
- Method for manufacturing optical fiber preform and apparatus for manufacturing optical fiber preform29 Sep 2022US 2022/0306515 A1Sumitomo Electric Industries, Ltd.
- Apparatus and method for producing porous glass preform16 Jun 2022US 2022/0185719 A1Shin-Etsu Chemical Co., Ltd.
- Methods for increasing deposition in a flame hydrolysis deposition process31 Mar 2022US 2022/0098084 A1
- Optical fiber preform13 Jan 2022US 2022/0009816 A1Shin-Etsu Chemical Co., Ltd.
Most cited
By later US patents
- Continuous optical fiber preform fabrication method65US 4,062,665 ANippon Telegraph & Telephone Public Corporation · 1977
- Method of using precision burners for oxidizing halide-free, silicon-containing compounds45US 5,599,371 ACorning Incorporated · 1997
- Method for manufacturing an optical fiber preform34US 4,224,046 ANippon Telegraph & Telephone Public Corporation · 1980
- Precision burners for oxidizing halide-free silicon-containing compounds33US 5,922,100 ACorning Incorporated · 1999
- Method, apparatus and burner for fabricating an optical fiber preform23US 4,618,354 ANippon Telegraph & Telephone Public Corporation · 1986