C03B 2203/18
Axial perturbations
Official title: Axial perturbations, e.g. in refractive index or composition
C03B2203/18 (Axial perturbations) appears on 196 US grants and 145 published applications in this corpus.
Search patents in C03B- Granted patents
- 196
- Published applications
- 145
- Assignees
- 85
- Inventors
- 425
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 10 |
| 2002 | 8 | 13 |
| 2003 | 21 | 13 |
| 2004 | 14 | 26 |
| 2005 | 8 | 11 |
| 2006 | 10 | 11 |
| 2007 | 10 | 3 |
| 2008 | 6 | 6 |
| 2009 | 6 | 5 |
| 2010 | 3 | 7 |
| 2011 | 6 | 7 |
| 2012 | 5 | 3 |
| 2013 | 5 | 6 |
| 2014 | 5 | 1 |
| 2015 | 4 | 2 |
| 2016 | 3 | 0 |
| 2017 | 3 | 2 |
| 2018 | 1 | 3 |
| 2019 | 3 | 4 |
| 2020 | 4 | 3 |
| 2021 | 1 | 3 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Continuously formed optical fiber with different core profile zones9 Dec 2025US 12,493,147 B2Legrand DPC, LLC
- Fiber-based angular homogenizer25 Nov 2025US 12,481,167 B2nLIGHT, Inc.
- Optical fiber with variable absorption7 Nov 2023US 11,808,970 B2Lumentum Operations LLC
- Method for making an optical fiber device from a 3D printed preform body and related structures17 Jan 2023US 11,554,977 B2Harris Corporation
- Multi-core optical fiber and method for manufacturing multi-core optical fiber19 Jul 2022US 11,391,603 B2Fujikura Ltd.
- Method for measuring twist of optical fiber and method for manufacturing optical fiber11 Jun 2026US 2026/0160641 A1Sumitomo Electric Industries, Ltd.
- Optical fiber production device and optical fiber production method8 May 2025US 2025/0145524 A1Sumitomo Electric Industries, Ltd.
- Controlling refractive index profile during fiber preform manufacturing11 Jul 2024US 2024/0230984 A9Lumentum Operations LLC
- Controlling refractive index profile during fiber preform manufacturing25 Apr 2024US 2024/0134113 A1Lumentum Operations LLC
- Fiber-based angular homogenizer9 Nov 2023US 2023/0359051 A1nLIGHT, Inc.
Most cited
By later US patents
- Active optical fiber and method for fabricating an active optical fiber235US 8,433,168 B2Optoelectronics Research Center, Tampere University of Technology · 2013
- Microstructured optical fiber with improved transmission efficiency and durability63US 6,418,258 B1Gazillion Bits, Inc. · 2002
- High index-contrast fiber waveguides and applications61US 6,788,864 B2OmniGuide Communications · 2004
- Method of making a fiber having low polarization mode dispersion due to a permanent spin58US 5,298,047 AAT&T Bell Laboratories · 1994
- Waveguides having axially varying structure57US 6,795,635 B1Corning Incorporated · 2004