C03B 2203/12
Non-circular or non-elliptical cross-section
Official title: Non-circular or non-elliptical cross-section, e.g. planar core
C03B2203/12 (Non-circular or non-elliptical cross-section) appears on 115 US grants and 87 published applications in this corpus.
Search patents in C03B- Granted patents
- 115
- Published applications
- 87
- Assignees
- 75
- Inventors
- 286
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 1 |
| 2003 | 2 | 3 |
| 2004 | 3 | 3 |
| 2005 | 1 | 7 |
| 2006 | 5 | 9 |
| 2007 | 7 | 7 |
| 2008 | 4 | 4 |
| 2009 | 0 | 6 |
| 2010 | 6 | 5 |
| 2011 | 8 | 3 |
| 2012 | 2 | 2 |
| 2013 | 0 | 3 |
| 2014 | 3 | 2 |
| 2015 | 3 | 7 |
| 2016 | 5 | 2 |
| 2017 | 3 | 3 |
| 2018 | 4 | 5 |
| 2019 | 3 | 3 |
| 2020 | 2 | 6 |
| 2021 | 2 | 3 |
| 2022 | 3 | 0 |
| 2023 | 0 | 0 |
| 2024 | 2 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gain optical fiber with double-clad fluoride and its preparation method31 Dec 2024US 12,180,112 B1Beijing University of Technology
- Element for a preform, a fiber production method and an optical fiber drawn from the preform24 Sep 2024US 12,098,088 B2Nkt Photonics A/S
- Methods of forming optical fibers having an expanded core for evanescent optical coupling15 Mar 2022US 11,275,213 B2Corning Research & Development Corporation
- Method for producing a glass-fibre preform with a core of a polygonal core cross section8 Feb 2022US 11,242,276 B2LEONI Kabel GmbH
- Hollow core optical fiber and method of making the same11 Jan 2022US 11,221,444 B2OFS Fitel, LLC
- Hollow core optical fibre with yield tolerant microstructure6 Aug 2026US 2026/0227566 A1University of Southampton
- 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
- Glass composition for flat cross-section glass fibers, flat cross-section glass fibers and method for manufacturing flat cross-section glass fibers from glass material containing glass recycling material5 Mar 2026US 2026/0062336 A1Nitto Boseki Co., Ltd.
- Element for a preform, a fiber production method and an optical fiber drawn from the preform21 Oct 2021US 2021/0323856 A1Nkt Photonics A/S
- Manufacturing of optical fibers with symmetry-breaking longitudinal protrusions17 Jun 2021US 2021/0184418 A1Coractive High-Tech Inc.
Most cited
By later US patents
- Method of producing elliptic core type polarization-maintaining optical fiber241US 5,482,525 AHitachi Cable, Ltd. · 1996
- Large core area single mode optical fiber226US 8,903,214 B2Nkt Photonics A/S · 2014
- Polarization-maintaining optical fiber, method of manufacturing polarization-maintaining optical-fiber connecting portion, and polarization-maintaining optical-fiber connecting portion223US 7,809,223 B2Furukawa Electric Co., Ltd. · 2010
- Flat surfaced optical fibers and diode laser medical delivery devices132US 5,566,267 ACeram Optec Industries, Inc. · 1996
- Cladding-pumped fiber structures105US 5,949,941 ALucent Technologies Inc. · 1999