C03B 37/0124
Means for reducing the diameter of rods or tubes by drawing
Official title: {Means for reducing the diameter of rods or tubes by drawing, e.g. for preform draw-down}
C03B37/0124 (Means for reducing the diameter of rods or tubes by drawing) appears on 191 US grants and 219 published applications in this corpus.
Search patents in C03B- Granted patents
- 191
- Published applications
- 219
- Assignees
- 81
- Inventors
- 495
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 3 |
| 2002 | 12 | 19 |
| 2003 | 13 | 12 |
| 2004 | 7 | 14 |
| 2005 | 4 | 13 |
| 2006 | 6 | 12 |
| 2007 | 4 | 3 |
| 2008 | 3 | 7 |
| 2009 | 4 | 6 |
| 2010 | 12 | 8 |
| 2011 | 7 | 9 |
| 2012 | 2 | 11 |
| 2013 | 1 | 7 |
| 2014 | 8 | 7 |
| 2015 | 7 | 10 |
| 2016 | 9 | 4 |
| 2017 | 6 | 6 |
| 2018 | 5 | 8 |
| 2019 | 6 | 5 |
| 2020 | 5 | 7 |
| 2021 | 2 | 4 |
| 2022 | 5 | 14 |
| 2023 | 6 | 6 |
| 2024 | 3 | 9 |
| 2025 | 11 | 10 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process of making multi-core fiber preform by integrating core rods and cladding cylinder15 Sep 2026US 12,735,344 B2Heraeus Quartz North America LLC
- Multicore optical fiber18 Aug 2026US 12,710,583 B2Sumitomo Electric Industries, Ltd.
- Optical fiber glass preform and method for drawing optical fiber glass preform12 May 2026US 12,623,948 B2Shin-Etsu Chemical Co., Ltd.
- Optical fiber manufacturing method and optical fiber manufacturing apparatus3 Mar 2026US 12,565,441 B2Fujikura Ltd.
- Method for processing glass filament10 Feb 2026US 12,545,617 B2Microsoft Technology Licensing, LLC
- Method of Preparation of a Multicore Fiber Preform18 Jun 2026US 2026/0167550 A1Heraeus Quartz North America LLC
- Method for processing glass filament14 May 2026US 2026/0132071 A1Microsoft Technology Licensing, LLC
- Method of manufacturing a preform for a hollow core optical fiber5 Feb 2026US 2026/0035283 A1Corning Incorporated
- Hollow core optical fibre drawing method with modified drawdown22 Jan 2026US 2026/0022052 A1University of Southampton
- Anti-resonance preform with two contact points15 Jan 2026US 2026/0016630 A1Heraeus Quarzglas GmbH & Co.KG
Most cited
By later US patents
- Ultra high numerical aperture optical fibers242US 7,715,672 B2Imra America, Inc. · 2010
- Hollow core photonic bandgap optical fiber51US 6,829,421 B2Micron Technology, Inc. · 2004
- Method of making photonic band gap fibers48US 6,444,133 B1Corning Incorporated · 2002
- Dispersion managed optical waveguide47US 5,894,537 ACorning Incorporated · 1999
- Method of making optical fiber having depressed index core region38US 5,917,109 ACorning Incorporated · 1999