C03B 2207/70
Control measures
C03B2207/70 (Control measures) appears on 108 US grants and 128 published applications in this corpus.
Search patents in C03B- Granted patents
- 108
- Published applications
- 128
- Assignees
- 38
- Inventors
- 240
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 11 |
| 2003 | 3 | 14 |
| 2004 | 13 | 9 |
| 2005 | 4 | 9 |
| 2006 | 8 | 6 |
| 2007 | 3 | 9 |
| 2008 | 4 | 0 |
| 2009 | 0 | 5 |
| 2010 | 3 | 2 |
| 2011 | 2 | 1 |
| 2012 | 3 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 8 |
| 2015 | 1 | 5 |
| 2016 | 6 | 4 |
| 2017 | 4 | 2 |
| 2018 | 3 | 6 |
| 2019 | 4 | 4 |
| 2020 | 2 | 6 |
| 2021 | 4 | 2 |
| 2022 | 4 | 8 |
| 2023 | 2 | 5 |
| 2024 | 4 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Large-sized hollow porous quartz glass preform and method of manufacturing the same28 Jul 2026US 12,692,184 B2Shin-Etsu Quartz Products Co., Ltd.
- Apparatus and method for producing porous glass preform30 Dec 2025US 12,509,387 B2Shin-Etsu Chemical Co., Ltd.
- Synthetic quartz glass manufacturing method through OVD process with improved deposition efficiency16 Sep 2025US 12,415,743 B2BCnC Co., Ltd.
- Process for the preparation of synthetic quartz glass11 Mar 2025US 12,246,982 B2Heraeus Quarzglas GmbH & Co.KG
- Glass fine particle deposit and method for manufacturing glass preform18 Jun 2024US 12,012,349 B2Sumitomo Electric Industries, Ltd.
- Optical fiber preform manufacturing method and optical fiber preform characteristic prediction method30 Jul 2026US 2026/0217590 A1Sumitomo Electric Industries, Ltd.
- Optical fiber preform, method for measuring refractive index profile of optical fiber preform, and method for producing optical fiber preform29 Jan 2026US 2026/0029342 A1Fujikura Ltd.
- Production method for porous glass preform, production method for transparent glass preform, and production apparatus for porous glass preform11 Dec 2025US 2025/0376407 A1Shin-Etsu Chemical Co., Ltd.
- Manufacturing method of optical fiber base material23 Oct 2025US 2025/0326679 A1Shin-Etsu Chemical Co., Ltd.
- Optical fiber preform and method of manufacturing optical fiber preform31 Jul 2025US 2025/0243106 A1Furukawa Electric 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 manufacturing silica glass member and silica glass member obtained by the method61US 6,769,273 B1Nikon Corporation · 2004
- Graded index optical fiber40US 4,076,380 ABell Telephone Laboratories, Incorporated · 1978
- Method of producing quartz glass bodies23US 6,047,564 AHeraeus Quarzglas GmbH & Co.KG · 2000
- Boule oscillation patterns in methods of producing fused silica glass22US 5,696,038 ACorning Incorporated · 1997