C03B 37/023
Fibres composed of different sorts of glass
Official title: Fibres composed of different sorts of glass, {e.g. glass optical fibres, made by the double crucible technique}
C03B37/023 (Fibres composed of different sorts of glass) appears on 118 US grants and 43 published applications in this corpus.
Search patents in C03B- Granted patents
- 118
- Published applications
- 43
- Assignees
- 65
- Inventors
- 225
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 3 |
| 2002 | 1 | 2 |
| 2003 | 8 | 7 |
| 2004 | 2 | 4 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 3 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 3 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 1 | 3 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Infrared-transmitting, polarization-maintaining optical fiber and method for making12 May 2026US 12,623,947 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Infrared-transmitting, polarization-maintaining optical fiber and method for making27 Feb 2024US 11,912,606 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Slow cooling of optical fibers having halogen doped cores31 Oct 2023US 11,802,070 B2Corning Incorporated
- Optical fiber bundle manufacturing apparatus, light guide, endoscope having light guide, and method of manufacturing optical fiber bundle1 Aug 2023US 11,712,158 B2Olympus Corporation
- Optical fiber manufacturing apparatus and method of starting optical fiber manufacturing apparatus5 May 2020US 10,641,945 B2Furukawa Electric Co., Ltd.
- Infrared-transmitting, polarization-maintaining optical fiber and method for making27 Aug 2026US 2026/0250178 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Glass fiber and method for producing the same25 Jun 2026US 2026/0176185 A1Nan Ya Plastics Corporation
- Furnace design to improve drawing of hollow-core fibers5 Feb 2026US 2026/0035285 A1Corning Incorporated
- Hollow-core fiber and method for manufacturing hollow-core fiber22 May 2025US 2025/0164688 A1Sumitomo Electric Industries, Ltd.
- Method and semi-finished product for producing a multicore fibre27 Mar 2025US 2025/0102729 A1Heraeus Quarzglas GmbH & Co.KG
Most cited
By later US patents
- Composition for optical waveguide article and method for making continuous clad filament61US 6,128,430 ACorning Incorporated · 2000
- Infrared fiber of AgCl clad AgBr and method of fabrication29US 4,253,731 AHoneywell Inc. · 1981
- Light-conducting glass structures28US 3,941,474 ANippon Selfoc Co., Ltd. · 1976
- Double crucible method of optical fiber manufacture28US 4,217,123 AInternational Standard Electric Corporation · 1980
- Method of manufacture of optical fiber28US 4,277,270 AEotec Corporation · 1981