C03B 2203/26
Parabolic or graded index [grin] core profile
Official title: Parabolic or graded index [GRIN] core profile
C03B2203/26 (Parabolic or graded index [grin] core profile) appears on 135 US grants and 97 published applications in this corpus.
Search patents in C03B- Granted patents
- 135
- Published applications
- 97
- Assignees
- 61
- Inventors
- 298
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 9 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 8 |
| 2003 | 9 | 3 |
| 2004 | 2 | 6 |
| 2005 | 1 | 7 |
| 2006 | 2 | 2 |
| 2007 | 3 | 2 |
| 2008 | 5 | 3 |
| 2009 | 2 | 3 |
| 2010 | 1 | 2 |
| 2011 | 3 | 5 |
| 2012 | 4 | 5 |
| 2013 | 2 | 6 |
| 2014 | 7 | 10 |
| 2015 | 4 | 8 |
| 2016 | 10 | 4 |
| 2017 | 5 | 6 |
| 2018 | 8 | 2 |
| 2019 | 1 | 4 |
| 2020 | 2 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 3 |
| 2024 | 2 | 2 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Fiber-based angular homogenizer25 Nov 2025US 12,481,167 B2nLIGHT, Inc.
- Multicore optical fiber21 Oct 2025US 12,449,589 B2Sumitomo Electric Industries, Ltd.
- Multimode optical fiber core cane classification method19 Aug 2025US 12,392,684 B2Corning Incorporated
- Tension-based methods for forming bandwidth tuned optical fibers for bi-modal optical data transmission26 Nov 2024US 12,151,964 B2Corning Incorporated
- Optical fiber for data centers2 Jan 2024US 11,860,408 B2Corning Incorporated
- 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.
- Multicore optical fiber19 Oct 2023US 2023/0333311 A1Sumitomo Electric Industries, Ltd.
- Multimode optical fiber core cane classification method30 Mar 2023US 2023/0094509 A1Corning Incorporated
Most cited
By later US patents
- Nonlinear optical fibre method of its production and use thereof234US 7,266,275 B2Crystal Fibre A/S · 2007
- Multi-core optical fiber and optical communication systems227US 8,503,845 B2Alcatel Lucent · 2013
- GRIN fiber lenses160US 6,542,665 B2Lucent Technologies Inc. · 2003
- Bend resistant multimode optical fiber66US 7,787,731 B2Corning Incorporated · 2010
- Method of making fluorine doped optical preform and fiber and resultant articles57US 4,629,485 ACorning Glass Works · 1986