G02B 6/02114
Characterised by enhanced photosensitivity characteristics of the fibre
Official title: {characterised by enhanced photosensitivity characteristics of the fibre, e.g. hydrogen loading, heat treatment (treatment of glass fibres by ion diffusion, implantation, radiation, C03C25/60, C03C25/62)}
G02B6/02114 (Characterised by enhanced photosensitivity characteristics of the fibre) appears on 119 US grants and 83 published applications in this corpus.
Search patents in G02B- Granted patents
- 119
- Published applications
- 83
- Assignees
- 64
- Inventors
- 270
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 13 | 2 |
| 2002 | 9 | 10 |
| 2003 | 10 | 17 |
| 2004 | 11 | 14 |
| 2005 | 10 | 4 |
| 2006 | 8 | 2 |
| 2007 | 2 | 3 |
| 2008 | 3 | 2 |
| 2009 | 4 | 6 |
| 2010 | 4 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 4 |
| 2017 | 3 | 1 |
| 2018 | 1 | 4 |
| 2019 | 1 | 2 |
| 2020 | 1 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Gain flattening filter, and method for manufacturing gain flattening filter21 Jan 2025US 12,204,140 B2Sumitomo Electric Industries, Ltd.
- Microheater comprising a rare earth-doped optical fiber23 Jan 2024US 11,880,062 B2Clemson University
- Slant-type fiber grating20 Sep 2022US 11,448,821 B2Sumitomo Electric Industries, Ltd.
- Optical fiber and optical fiber grating30 Mar 2021US 10,962,709 B2Sumitomo Electric Industries, Ltd.
- Optical fiber and slanted fiber grating2 Feb 2021US 10,908,353 B2Sumitomo Electric Industries, Ltd.
- Systems and methods for enhanced back scattering in optical fibers with hermeticity18 Apr 2024US 2024/0126009 A1OFS Fitel, LLC
- Gain flattening filter, and method for manufacturing gain flattening filter18 May 2023US 2023/0152514 A1Sumitomo Electric Industries, Ltd.
- Optical fiber and optical fiber filter23 Jun 2022US 2022/0196908 A1
- Slant-type fiber grating22 Jul 2021US 2021/0223468 A1Sumitomo Electric Industries, Ltd.
- Optimized optical fiber for enhanced scatter in downhole environments17 Jun 2021US 2021/0180447 A1Baker Hughes Oilfield Operations LLC
Most cited
By later US patents
- Article comprising an optical waveguide with in-line refractive index grating112US 5,218,655 AAT&T Bell Laboratories · 1993
- Method of making an article comprising an optical component, and article comprising the component108US 5,287,427 AAT&T Bell Laboratories · 1994
- Method of making an article comprising an optical waveguide99US 5,235,659 AAT&T Bell Laboratories · 1993
- Method of making an optical fiber grating, and article made by the method99US 5,745,615 ALucent Technologies Inc. · 1998
- Wavelength selective optical couplers73US 5,805,751 AArroyo Optics, Inc. · 1998