C03B 37/01853
Thermal after-treatment of preforms
Official title: {Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering}
C03B37/01853 (Thermal after-treatment of preforms) appears on 82 US grants and 79 published applications in this corpus.
Search patents in C03B- Granted patents
- 82
- Published applications
- 79
- Assignees
- 42
- Inventors
- 269
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
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| 1994 | 1 | 0 |
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| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 3 |
| 2003 | 1 | 4 |
| 2004 | 1 | 3 |
| 2005 | 4 | 7 |
| 2006 | 2 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 5 |
| 2009 | 0 | 5 |
| 2010 | 2 | 2 |
| 2011 | 2 | 3 |
| 2012 | 2 | 3 |
| 2013 | 0 | 0 |
| 2014 | 3 | 1 |
| 2015 | 3 | 5 |
| 2016 | 2 | 4 |
| 2017 | 4 | 4 |
| 2018 | 2 | 1 |
| 2019 | 4 | 6 |
| 2020 | 0 | 3 |
| 2021 | 4 | 3 |
| 2022 | 4 | 5 |
| 2023 | 4 | 1 |
| 2024 | 2 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for making halogen doped optical element26 May 2026US 12,637,384 B2Corning Incorporated
- Cleaning step to remove metals or metal oxides from porous glass body19 May 2026US 12,630,459 B2Corning Incorporated
- System and methods for processing an optical fiber preform15 Jul 2025US 12,358,830 B2Corning Incorporated
- Process for the preparation of synthetic quartz glass11 Mar 2025US 12,246,982 B2Heraeus Quarzglas GmbH & Co.KG
- Radiation-resistant laser optical fiber preform core rod and preparation method therefor4 Jun 2024US 12,001,052 B2Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
- Expanding tip plugs and method of using and making the same28 May 2026US 2026/0145984 A1Corning Incorporated
- Optical fiber with reduced attenuation due to reduced absorption contribution5 Mar 2026US 2026/0063835 A1Corning Incorporated
- Manufacturing method of optical fiber base material23 Oct 2025US 2025/0326679 A1Shin-Etsu Chemical Co., Ltd.
- Optical Fiber, Optical Fiber Preparation Method, and Optical Fiber Amplifier9 Oct 2025US 2025/0316945 A1Huawei Technologies Co., Ltd.
- Cleaning step to remove metals or metal oxides from porous glass body31 Oct 2024US 2024/0360024 A1Corning Incorporated
Most cited
By later US patents
- Method for optical fiber fabrication including deuterium/hydrogen exchange42US 4,515,612 AAT&T Bell Laboratories · 1985
- Quartz glass doped with rare earth element and production thereof30US 5,262,365 AFurukawa Electric Co., Ltd. · 1993
- Photorefractive optical fiber29US 5,157,747 AAT&T Bell Laboratories · 1992
- High power three level fiber laser and method of making same29US 6,031,849 AJDS Uniphase Corporation · 2000
- Method of making nitrogen-doped graded index optical waveguides27US 4,203,744 ACorning Glass Works · 1980