H04Q 2011/002
Using optical delay lines or optical buffers or optical recirculation
Official title: {using optical delay lines or optical buffers or optical recirculation}
H04Q2011/002 (Using optical delay lines or optical buffers or optical recirculation) appears on 180 US grants and 153 published applications in this corpus.
Search patents in H04Q- Granted patents
- 180
- Published applications
- 153
- Assignees
- 103
- Inventors
- 338
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 3 |
| 2002 | 4 | 21 |
| 2003 | 5 | 5 |
| 2004 | 9 | 13 |
| 2005 | 7 | 13 |
| 2006 | 13 | 12 |
| 2007 | 11 | 8 |
| 2008 | 7 | 3 |
| 2009 | 4 | 11 |
| 2010 | 7 | 5 |
| 2011 | 10 | 4 |
| 2012 | 10 | 8 |
| 2013 | 4 | 3 |
| 2014 | 6 | 1 |
| 2015 | 4 | 3 |
| 2016 | 3 | 3 |
| 2017 | 7 | 10 |
| 2018 | 8 | 2 |
| 2019 | 0 | 1 |
| 2020 | 3 | 1 |
| 2021 | 1 | 6 |
| 2022 | 4 | 4 |
| 2023 | 1 | 3 |
| 2024 | 3 | 3 |
| 2025 | 2 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Hybrid electronic/optical switch system87US 6,647,208 B1Massachusetts Institute of Technology · 2003
- Wavelength division optical signalling network apparatus and method86US 5,600,466 ABritish Telecommunications Public Ltd.Co. · 1997
- WDM network with control wavelength86US 5,864,414 ABritish Telecommunications Public Ltd.Co. · 1999
- Optical packet switching system82US 5,734,486 AFrance Telecom · 1998
- Control architecture in optical burst-switched networks77US 6,721,315 B1Alcatel · 2004