G02B 6/03638
Having 3 layers only
Official title: {having 3 layers only}
G02B6/03638 (Having 3 layers only) appears on 1,089 US grants and 1,041 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,089
- Published applications
- 1,041
- Assignees
- 196
- Inventors
- 1,267
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 10 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 15 | 0 |
| 2000 | 12 | 0 |
| 2001 | 31 | 16 |
| 2002 | 55 | 63 |
| 2003 | 59 | 67 |
| 2004 | 49 | 57 |
| 2005 | 45 | 42 |
| 2006 | 55 | 39 |
| 2007 | 47 | 38 |
| 2008 | 33 | 42 |
| 2009 | 33 | 43 |
| 2010 | 30 | 45 |
| 2011 | 29 | 55 |
| 2012 | 42 | 38 |
| 2013 | 41 | 45 |
| 2014 | 51 | 45 |
| 2015 | 54 | 35 |
| 2016 | 39 | 40 |
| 2017 | 43 | 42 |
| 2018 | 37 | 57 |
| 2019 | 35 | 43 |
| 2020 | 53 | 33 |
| 2021 | 28 | 40 |
| 2022 | 29 | 30 |
| 2023 | 29 | 28 |
| 2024 | 23 | 25 |
| 2025 | 10 | 22 |
| 2026 | 8 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-core optical fiber15 Sep 2026US 12,736,742 B2Sumitomo Electric Industries, Ltd.
- Multicore optical fiber with low group delay21 Apr 2026US 12,607,797 B2Corning Incorporated
- Optical fiber14 Apr 2026US 12,601,871 B2Sumitomo Electric Industries, Ltd.
- Optical fiber with inverse triangular trench design17 Mar 2026US 12,578,525 B2Corning Incorporated
- Multicore optical fiber10 Feb 2026US 12,546,933 B2Sumitomo Electric Industries, Ltd.
- Multi-core optical fiber and method for designing multi-core optical fiber3 Sep 2026US 2026/0259366 A1NTT, Inc.
- Anti-resonant hollow core optical fiber with contacting cladding elements with multiply nested capillaries27 Aug 2026US 2026/0251841 A1Corning Incorporated
- Multicore optical fiber and multicore optical fiber cable6 Aug 2026US 2026/0227565 A1Sumitomo Electric Industries, Ltd.
- Optical fiber with longitudinally dependent zero-dispersion wavelength and method of making same30 Jul 2026US 2026/0219442 A1Corning Incorporated
- Strong, fatigue-resistant optical fiber with enhanced side irradiation23 Jul 2026US 2026/0211174 A1
Most cited
By later US patents
- Optical fiber340US 7,555,186 B2Draka Comteq B.V. · 2009
- Super-large-effective-area (SLA) optical fiber and communication system incorporating the same290US 6,904,218 B2Fitel USA Corp. · 2005
- Large effective area fiber267US 7,555,187 B2Corning Incorporated · 2009
- Large numerical aperture bend resistant multimode optical fiber263US 7,903,918 B1Corning Incorporated · 2011
- Fiber for optical transmission259US 4,715,695 ASumitomo Electric Industries, Ltd. · 1987