G02B 6/2804
Forming multipart couplers without wavelength selective elements
Official title: {forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers}
G02B6/2804 (Forming multipart couplers without wavelength selective elements) appears on 3,536 US grants and 2,107 published applications in this corpus.
Search patents in G02B- Granted patents
- 3,536
- Published applications
- 2,107
- Assignees
- 1,233
- Inventors
- 5,545
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 18 | 0 |
| 1978 | 20 | 0 |
| 1979 | 23 | 0 |
| 1980 | 16 | 0 |
| 1981 | 35 | 0 |
| 1982 | 24 | 0 |
| 1983 | 20 | 0 |
| 1984 | 50 | 0 |
| 1985 | 38 | 0 |
| 1986 | 40 | 0 |
| 1987 | 68 | 0 |
| 1988 | 97 | 0 |
| 1989 | 84 | 0 |
| 1990 | 80 | 0 |
| 1991 | 110 | 0 |
| 1992 | 95 | 0 |
| 1993 | 82 | 0 |
| 1994 | 81 | 0 |
| 1995 | 75 | 0 |
| 1996 | 70 | 0 |
| 1997 | 83 | 0 |
| 1998 | 96 | 0 |
| 1999 | 89 | 0 |
| 2000 | 71 | 0 |
| 2001 | 96 | 19 |
| 2002 | 105 | 131 |
| 2003 | 147 | 169 |
| 2004 | 125 | 157 |
| 2005 | 111 | 100 |
| 2006 | 122 | 96 |
| 2007 | 109 | 68 |
| 2008 | 77 | 49 |
| 2009 | 46 | 60 |
| 2010 | 48 | 65 |
| 2011 | 47 | 59 |
| 2012 | 36 | 56 |
| 2013 | 55 | 67 |
| 2014 | 56 | 69 |
| 2015 | 67 | 87 |
| 2016 | 80 | 94 |
| 2017 | 110 | 106 |
| 2018 | 91 | 99 |
| 2019 | 79 | 89 |
| 2020 | 91 | 87 |
| 2021 | 66 | 70 |
| 2022 | 69 | 81 |
| 2023 | 63 | 78 |
| 2024 | 63 | 65 |
| 2025 | 60 | 55 |
| 2026 | 35 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02B 6/2821Using lateral coupling between contiguous fibres to split or combine optical signals998
- G02B 6/2808Using a mixing element which evenly distributes an input signal over a710
- G02B 6/2817Using reflective elements to split or combine optical signals535
- G02B 6/2861Using fibre optic delay lines and optical elements associated with them456
- G02B 6/2852Using tapping light guides arranged sidewardly341
- G02B 6/2848Having refractive means261
- G02B 6/2856Formed or shaped by thermal heating means231
- G02B 2006/2865Couplers of the 3x3 typeIndexing code39
Recent patents
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- Fiber optic beam splitter4 Aug 2026US 12,699,226 B2Netafim, Ltd.
- Grating coupler with high efficiency4 Aug 2026US 12,699,228 B2Apple Inc.
- Integrated photonic 2×3 coupler28 Jul 2026US 12,693,475 B2Cisco Technology, Inc.
- Tunable optical fading in a receiver to improve out of band rejection for variable baud1 Oct 2026US 2026/0299205 A1Ciena Corporation
- Integrated photonic 2x3 coupler1 Oct 2026US 2026/0299208 A1Cisco Technology, Inc.
- Star coupler device3 Sep 2026US 2026/0259377 A1BE Epitaxy Semiconductor Technology Co., Ltd.
- Optical coupling device, optical chip and optical module27 Aug 2026US 2026/0251858 A1InnoLight Technology (Suzhou) Ltd.
- Systems using microled-based interconnects20 Aug 2026US 2026/0243971 A1AvicenaTech, Corp.
Most cited
By later US patents
- System and method for optical coherence imaging448US 7,366,376 B2The General Hospital Corporation · 2008
- Connectorized inside fiber optic drop390US 6,668,127 B1BellSouth Intellectual Property Corporation · 2003
- Switchable optical components377US 6,567,573 B1DigiLens Inc. · 2003
- Fiber optic interface device347US 6,625,375 B1BellSouth Intellectual Property Corporation · 2003
- Illumination devices and optical fibres for use therein334US 5,432,876 AMinnesota Mining and Manufacturing Company · 1995