G02B 6/03661
Having 4 layers only
Official title: {having 4 layers only}
G02B6/03661 (Having 4 layers only) appears on 386 US grants and 341 published applications in this corpus.
Search patents in G02B- Granted patents
- 386
- Published applications
- 341
- Assignees
- 99
- Inventors
- 577
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 13 | 7 |
| 2002 | 25 | 30 |
| 2003 | 24 | 34 |
| 2004 | 32 | 38 |
| 2005 | 31 | 22 |
| 2006 | 20 | 14 |
| 2007 | 20 | 20 |
| 2008 | 13 | 11 |
| 2009 | 10 | 9 |
| 2010 | 6 | 9 |
| 2011 | 7 | 23 |
| 2012 | 9 | 12 |
| 2013 | 18 | 12 |
| 2014 | 22 | 9 |
| 2015 | 12 | 10 |
| 2016 | 10 | 7 |
| 2017 | 8 | 6 |
| 2018 | 11 | 19 |
| 2019 | 6 | 7 |
| 2020 | 14 | 7 |
| 2021 | 5 | 12 |
| 2022 | 10 | 10 |
| 2023 | 8 | 5 |
| 2024 | 4 | 3 |
| 2025 | 2 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical fiber, laser generator, laser processing apparatus, and method of manufacturing optical fiber14 Jul 2026US 12,678,887 B2Fujikura Ltd.
- Optical fibers, optical fiber assemblies, and optical connections having an array of optical fibers10 Feb 2026US 12,546,934 B2Corning Research & Development Corporation
- Active lma optical fiber with enhanced transverse mode stability6 Jan 2026US 12,519,279 B2Institut National D'Optique
- Multicore optical fiber and multicore optical fiber cable23 Dec 2025US 12,504,578 B2
- Rollable optical fiber ribbon with low attenuation, large mode field diameter optical fiber and cable11 Mar 2025US 12,248,192 B2Corning Research & Development Corporation
- Strong, fatigue-resistant optical fiber with enhanced side irradiation23 Jul 2026US 2026/0211174 A1
- Distributed power divider for power-over-fiber system23 Apr 2026US 2026/0113126 A1Huawei Technologies Co., Ltd.
- Optical Fiber Cable and Optical Fiber with Reduced Diameter12 Feb 2026US 2026/0043961 A1
- Rollable optical fiber ribbon with low attenuation, large mode field diameter optical fiber and cable19 Jun 2025US 2025/0199257 A1Corning Research & Development Corporation
- Optical fiber exhibiting high lp11 attenuation but low lp01 attenuation when looped24 Apr 2025US 2025/0130364 A1Corning Incorporated
Most cited
By later US patents
- Super-large-effective-area (SLA) optical fiber and communication system incorporating the same290US 6,904,218 B2Fitel USA Corp. · 2005
- Low bend loss coated optical fiber248US 7,539,381 B2Corning Incorporated · 2009
- Large effective area low attenuation optical fiber241US 8,218,929 B2Corning Incorporated · 2012
- Broad-bandwidth multimode optical fiber having reduced bending losses238US 8,565,568 B2Draka Comteq B.V. · 2013
- Multi-cladding fiber231US 8,731,358 B22014