C03B 2205/92
Using means for gradually reducing the cross-section towards the outlet or around
Official title: using means for gradually reducing the cross-section towards the outlet or around the preform draw end, e.g. tapered
C03B2205/92 (Using means for gradually reducing the cross-section towards the outlet or around) appears on 13 US grants and 8 published applications in this corpus.
Search patents in C03B- Granted patents
- 13
- Published applications
- 8
- Assignees
- 10
- Inventors
- 53
- Latest grant
- 28 Nov 2023
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| Year | Granted patents | Published applications |
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| 2020 | 1 | 0 |
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| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Optical fiber forming apparatus28 Nov 2023US 11,827,555 B2Corning Incorporated
- Tapered furnace muffles8 Feb 2022US 11,242,278 B2Corning Incorporated
- Optical fiber, and system and method for manufacturing optical fiber25 Feb 2020US 10,571,627 B2Jiangsu Zhongtian Technology Co., Ltd.
- Optical fiber drawing method and optical fiber drawing apparatus14 Feb 2017US 9,567,252 B2Sumitomo Electric Industries, Ltd.
- Optical fiber producing method and apparatus and optical fiber25 Oct 2016US 9,475,722 B2Sumitomo Electric Industries, Ltd.
- Optical fiber manufacturing method and optical fiber drawing device26 Jun 2025US 2025/0206654 A1Sumitomo Electric Industries, Ltd.
- Optical fiber forming apparatus18 Nov 2021US 2021/0355018 A1Corning Incorporated
- Tapered furnace muffles19 Sep 2019US 2019/0284084 A1Corning Incorporated
- Optical fiber, and system and method for manufacturing optical fiber4 Apr 2019US 2019/0101693 A1Jiangsu Zhongtian Technology Co., Ltd.
- Optical fiber drawing method and optical fiber drawing apparatus7 Jan 2016US 2016/0002090 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- Apparatus for heating a preform from which lightguide fiber is drawn21US 4,547,644 AAT&T Technologies, Inc. · 1985
- Method and furnace for drawing optical fibers18US 5,637,130 ASumitomo Electric Industries, Ltd. · 1997
- Method and device for manufacturing an optical fiber13US 5,545,246 AKabel Rheydt Aktiengesellschaft · 1996
- Method of controlling an upper portion of an optical fiber draw furnace10US 6,810,692 B2Sumitomo Electric Industries, Ltd. · 2004
- Optical fiber drawing furnace having adjustable partitions6US 6,668,592 B1Sumitomo Electric Industries, Ltd. · 2003