C03B 37/01234
To form longitudinal grooves
Official title: {to form longitudinal grooves, e.g. by chamfering}
C03B37/01234 (To form longitudinal grooves) appears on 34 US grants and 31 published applications in this corpus.
Search patents in C03B- Granted patents
- 34
- Published applications
- 31
- Assignees
- 18
- Inventors
- 93
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 4 |
| 2007 | 4 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 2 |
| 2022 | 1 | 4 |
| 2023 | 1 | 2 |
| 2024 | 3 | 0 |
| 2025 | 3 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing a preform for producing a multicore fibre and also a preform and a multicore fibre6 Jan 2026US 12,515,979 B2J-Fiber GmbH
- Multicore fiber, manufacturing method for multicore fiber, multicore fiber preform, and manufacturing method for multicore fiber preform25 Nov 2025US 12,481,097 B2Furukawa Electric Co., Ltd.
- Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber5 Aug 2025US 12,378,150 B2Heraeus Quarzglas GmbH & Co.KG
- Special optical fiber for measuring 3D curved shape, manufacturing method thereof, and system for measuring 3D curved shape by using special optical fiber7 Jan 2025US 12,188,760 B2Optonics Co., Ltd.
- Methods for producing a hollow-core fiber and for producing a preform for a hollow-core fiber31 Dec 2024US 12,180,106 B2Heraeus Quartz North America LLC
- Methods of Pedestal Shaping in Optical Fibers and Related Structures30 Jul 2026US 2026/0217589 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Method of Preparation of a Multicore Fiber Preform18 Jun 2026US 2026/0167550 A1Heraeus Quartz North America LLC
- Method of manufacturing a hollow core optical fiber5 Feb 2026US 2026/0035282 A1Corning Incorporated
- Method and semi-finished product for producing a multicore fibre15 May 2025US 2025/0154047 A1Heraeus Quarzglas GmbH & Co.KG
- Method and intermediate product for producing a multi-core fibre with a marker1 May 2025US 2025/0138239 A1Heraeus Quarzglas GmbH & Co.KG
Most cited
By later US patents
- Cladding-pumped fiber structure101US 5,966,491 ALucent Technologies Inc. · 1999
- Cladding-pumped optical fiber and methods for fabricating46US 6,779,364 B2Nufern · 2004
- Cladding-pumped optical fiber and methods for fabricating35US 6,477,307 B1Nufern · 2002
- Optical fibre for improved power coupling25US 5,790,735 ASDL, Inc. · 1998
- Method of making a cladding pumped fiber structure25US 5,873,923 ALucent Technologies Inc. · 1999