C03B 37/029
Furnaces therefor
C03B37/029 (Furnaces therefor) appears on 212 US grants and 186 published applications in this corpus.
Search patents in C03B- Granted patents
- 212
- Published applications
- 186
- Assignees
- 87
- Inventors
- 501
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 2 |
| 2002 | 5 | 16 |
| 2003 | 3 | 11 |
| 2004 | 5 | 7 |
| 2005 | 9 | 11 |
| 2006 | 3 | 8 |
| 2007 | 2 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 5 |
| 2010 | 4 | 2 |
| 2011 | 2 | 2 |
| 2012 | 4 | 4 |
| 2013 | 1 | 4 |
| 2014 | 6 | 4 |
| 2015 | 3 | 4 |
| 2016 | 4 | 2 |
| 2017 | 3 | 6 |
| 2018 | 2 | 8 |
| 2019 | 4 | 16 |
| 2020 | 6 | 13 |
| 2021 | 9 | 14 |
| 2022 | 18 | 15 |
| 2023 | 9 | 9 |
| 2024 | 5 | 4 |
| 2025 | 8 | 13 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical fiber draw production systems, pressure devices and methods applying pressure to optical fiber12 May 2026US 12,623,949 B2Corning Incorporated
- In-tower optical fiber bending5 May 2026US 12,617,709 B2
- Optical fiber manufacturing method and apparatus10 Mar 2026US 12,570,566 B2Furukawa Electric Co., Ltd.
- Optical fiber manufacturing method and optical fiber manufacturing apparatus3 Mar 2026US 12,565,441 B2Fujikura Ltd.
- Manufacturing method of glass base material for optical fiber3 Mar 2026US 12,565,442 B2Shin-Etsu Chemical Co., Ltd.
- Apparatus of manufacturing optical fiber and method of manufacturing optical fiber16 Jul 2026US 2026/0200787 A1Sumitomo Electric Industries, Ltd.
- Single-draw multi-step multi-furnace fabrication of hollow-core fibers18 Jun 2026US 2026/0167555 A1University of Central Florida Research Foundation, Inc.
- Optical fiber coating composition, optical fiber, and preparation method thereof30 Apr 2026US 2026/0118557 A1Phichem Corporation
- Furnace design to improve drawing of hollow-core fibers5 Feb 2026US 2026/0035285 A1Corning Incorporated
- Method of nanofiber fabrication with a deuterium or tritium flame25 Sep 2025US 2025/0296868 A1Nanofiber Quantum Technologies, Inc.
Most cited
By later US patents
- Method and apparatus for drawing optical fibers107US 5,284,499 ACorning Incorporated · 1994
- Optical fiber draw furnace68US 5,410,567 ACorning Incorporated · 1995
- High index-contrast fiber waveguides and applications61US 6,788,864 B2OmniGuide Communications · 2004
- Method and apparatus for drawing optical fibers60US 4,135,902 AWestern Electric Company, Inc. · 1979
- Single mode, single polarization optical fiber with accessible guiding region and method of forming directional coupler using same54US 4,669,814 AAndrew Corporation · 1987