H01S 5/0268
Integrated waveguide grating router
Official title: {Integrated waveguide grating router, e.g. emission of a multi-wavelength laser array is combined by a "dragon router"}
H01S5/0268 (Integrated waveguide grating router) appears on 237 US grants and 214 published applications in this corpus.
Search patents in H01S- Granted patents
- 237
- Published applications
- 214
- Assignees
- 90
- Inventors
- 348
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 9 |
| 2004 | 3 | 14 |
| 2005 | 3 | 33 |
| 2006 | 42 | 13 |
| 2007 | 10 | 17 |
| 2008 | 9 | 11 |
| 2009 | 15 | 9 |
| 2010 | 12 | 9 |
| 2011 | 6 | 8 |
| 2012 | 10 | 1 |
| 2013 | 4 | 4 |
| 2014 | 6 | 5 |
| 2015 | 10 | 8 |
| 2016 | 10 | 10 |
| 2017 | 10 | 9 |
| 2018 | 11 | 8 |
| 2019 | 8 | 7 |
| 2020 | 12 | 9 |
| 2021 | 4 | 6 |
| 2022 | 6 | 6 |
| 2023 | 5 | 6 |
| 2024 | 3 | 4 |
| 2025 | 5 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Wavelength division multiplexed optical communication transmitters142US 5,394,489 AAT&T Corp. · 1995
- Arrayed-wave guide grating multi/demultiplexer with loop-back optical paths100US 5,414,548 ANippon Telegraph and Telephone Corporation · 1995
- Photonic crystal waveguide arrays84US 6,175,671 B1Nortel Networks Limited · 2001
- Transmitter photonic integrated circuit (TxPIC) chips78US 7,885,492 B2Infinera Corporation · 2011
- Method for a reflective digitally tunable laser74US 5,418,183 AAT&T Corp. · 1995