C03B 2205/62
Heating means for drawing
C03B2205/62 (Heating means for drawing) appears on 105 US grants and 61 published applications in this corpus.
Search patents in C03B- Granted patents
- 105
- Published applications
- 61
- Assignees
- 52
- Inventors
- 254
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 8 |
| 2003 | 3 | 2 |
| 2004 | 2 | 1 |
| 2005 | 3 | 3 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 4 |
| 2015 | 3 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 4 |
| 2020 | 2 | 2 |
| 2021 | 2 | 5 |
| 2022 | 3 | 7 |
| 2023 | 5 | 6 |
| 2024 | 2 | 3 |
| 2025 | 6 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C03B 2205/63Ohmic resistance heatersIndexing code45
- C03B 2205/64Induction furnaces, i.e. hf/rf coilIndexing code32
- C03B 2205/67Laser heatingIndexing code15
- C03B 2205/68Hot gasIndexing code9
- C03B 2205/69Auxiliary thermal treatment immediately prior to drawingIndexing code7
- C03B 2205/66Microwave or similar electromagnetic wave heatingIndexing code1
Recent patents
- Nanofiber manufacturing device and method for quantum computing18 Aug 2026US 12,709,565 B1Nanofiber Quantum Technologies, Inc.
- Optical fiber manufacturing method and apparatus10 Mar 2026US 12,570,566 B2Furukawa Electric Co., Ltd.
- Manufacturing method of glass base material for optical fiber3 Mar 2026US 12,565,442 B2Shin-Etsu Chemical Co., Ltd.
- Inductive furnace with rotating susceptor for high precision waveguide glass draw23 Dec 2025US 12,503,386 B2Heraeus Quartz North America LLC
- Method for manufacturing optical fiber glass preform23 Sep 2025US 12,421,156 B2Shin-Etsu Chemical Co., Ltd.
- Glass fiber and method for producing the same25 Jun 2026US 2026/0176185 A1Nan Ya Plastics Corporation
- Methods for producing glass strand and glass yarn28 May 2026US 2026/0145986 A1Shin-Etsu Chemical Co., Ltd.
- 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.
- Microgravity crucible-controlled manufacturing13 Mar 2025US 2025/0083990 A1DSTAR Communications, Inc.
Most cited
By later US patents
- Optical fiber draw furnace68US 5,410,567 ACorning Incorporated · 1995
- 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
- Method of making optical waveguides from glass fibers47US 3,981,705 ABell Telephone Laboratories, Incorporated · 1976
- Device for heating an annular surface zone of a threadlike object47US 4,547,650 AThomson-CSF · 1985