G02B 6/03622
Having 2 layers only
Official title: {having 2 layers only}
G02B6/03622 (Having 2 layers only) appears on 1,028 US grants and 920 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,028
- Published applications
- 920
- Assignees
- 275
- Inventors
- 1,484
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 10 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 8 | 0 |
| 1997 | 12 | 0 |
| 1998 | 21 | 0 |
| 1999 | 25 | 0 |
| 2000 | 16 | 0 |
| 2001 | 35 | 17 |
| 2002 | 55 | 66 |
| 2003 | 57 | 65 |
| 2004 | 50 | 48 |
| 2005 | 36 | 39 |
| 2006 | 41 | 31 |
| 2007 | 37 | 34 |
| 2008 | 30 | 35 |
| 2009 | 29 | 36 |
| 2010 | 28 | 35 |
| 2011 | 22 | 25 |
| 2012 | 17 | 27 |
| 2013 | 24 | 37 |
| 2014 | 35 | 34 |
| 2015 | 39 | 35 |
| 2016 | 37 | 40 |
| 2017 | 49 | 42 |
| 2018 | 36 | 54 |
| 2019 | 28 | 34 |
| 2020 | 47 | 38 |
| 2021 | 30 | 32 |
| 2022 | 26 | 22 |
| 2023 | 23 | 39 |
| 2024 | 17 | 21 |
| 2025 | 19 | 22 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hollow-core optical fibers22 Sep 2026US 12,742,925 B2Corning Incorporated
- Single mode optical fiber suitable for ribbon applications15 Sep 2026US 12,736,743 B2
- Optical fiber and fiber laser device4 Aug 2026US 12,700,707 B2Fujikura Ltd.
- Uncoupled-core multicore optical fiber with reduced cross talk28 Jul 2026US 12,693,469 B2Corning Incorporated
- Multicore optical fiber and optical transmission system2 Jun 2026US 12,645,025 B2Sumitomo Electric Industries, Ltd.
- Multicore optical fiber and multicore optical fiber cable6 Aug 2026US 2026/0227565 A1Sumitomo Electric Industries, Ltd.
- Optical fiber30 Jul 2026US 2026/0219440 A1Sumitomo Electric Industries, Ltd.
- Strong, fatigue-resistant optical fiber with enhanced side irradiation23 Jul 2026US 2026/0211174 A1
- Machining apparatus for laser machining a workpiece, method for laser machining a workpiece9 Jul 2026US 2026/0192385 A1Bystronic Laser AG
- Multi-core optical fiber25 Jun 2026US 2026/0177738 A1Sumitomo Electric Industries, Ltd.
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
- 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
- Low bend loss optical fiber247US 8,081,854 B2Gwangju Institute of Science and Technology · 2011
- Bend insensitive single mode fiber237US 8,750,664 B2Futong Group Co., Ltd. · 2014