G02B 6/021
Characterised by the core or cladding or coating
Official title: {characterised by the core or cladding or coating, e.g. materials, radial refractive index profiles, cladding shape}
G02B6/021 (Characterised by the core or cladding or coating) appears on 310 US grants and 254 published applications in this corpus.
Search patents in G02B- Granted patents
- 310
- Published applications
- 254
- Assignees
- 180
- Inventors
- 710
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 12 | 0 |
| 1999 | 14 | 0 |
| 2000 | 15 | 0 |
| 2001 | 26 | 7 |
| 2002 | 21 | 18 |
| 2003 | 21 | 29 |
| 2004 | 20 | 19 |
| 2005 | 13 | 14 |
| 2006 | 15 | 6 |
| 2007 | 8 | 9 |
| 2008 | 13 | 8 |
| 2009 | 5 | 8 |
| 2010 | 7 | 7 |
| 2011 | 2 | 7 |
| 2012 | 7 | 8 |
| 2013 | 4 | 6 |
| 2014 | 6 | 3 |
| 2015 | 4 | 3 |
| 2016 | 5 | 6 |
| 2017 | 6 | 6 |
| 2018 | 5 | 12 |
| 2019 | 16 | 18 |
| 2020 | 17 | 13 |
| 2021 | 4 | 12 |
| 2022 | 6 | 13 |
| 2023 | 7 | 5 |
| 2024 | 7 | 9 |
| 2025 | 4 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optoelectronic device18 Aug 2026US 12,710,604 B2Advanced Semiconductor Engineering, Inc.
- Optical coupler for LIDAR sensor26 May 2026US 12,638,559 B2Aurora Operations, Inc.
- Method for determining distributed birefringence variations in a polarization-maintaining optical fiber20 Jan 2026US 12,529,623 B2Huawei Technologies Canada Co., Ltd.
- Mode-selective optical fiber couplers6 Jan 2026US 12,517,302 B2Corning Incorporated
- Optical fiber16 Dec 2025US 12,498,516 B2NTT, Inc.
- Fiber bragg grating element and method for producing same25 Jun 2026US 2026/0177742 A1Waseda University
- Reflectors applied to photonics platforms22 Jan 2026US 2026/0023208 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Optical fibers with low bend loss1 Jan 2026US 2026/0003118 A1Corning Incorporated
- Annular small-period-long-period fiber grating sensor, preparation method and applications thereof2 Oct 2025US 2025/0305858 A1Huazhong University of Science and Technology
- Optical Grating Configured to Emit an Optical Beam Having a Predetermined Cross-Section and an Predetermined Intensity Pattern Over Such Cross-Section28 Aug 2025US 2025/0271615 A1Honeywell International Inc.
Most cited
By later US patents
- Multicore optical fibre354US 6,301,420 B1The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 2001
- Article comprising a micro-structured optical fiber, and method of making such fiber283US 5,802,236 ALucent Technologies Inc. · 1998
- Optical waveguide sensors having high refractive index sensitivity134US 6,366,722 B1Luna Innovations Incorporated · 2002
- Optical fiber long period sensor having a reactive coating122US 5,864,641 AF&S, Inc. · 1999
- Article comprising an air-clad optical fiber93US 5,907,652 ALucent Technologies Inc. · 1999