G01M 11/319
Reflectometers using stimulated back-scatter
Official title: {Reflectometers using stimulated back-scatter, e.g. Raman or fibre amplifiers}
G01M11/319 (Reflectometers using stimulated back-scatter) appears on 90 US grants and 85 published applications in this corpus.
Search patents in G01M- Granted patents
- 90
- Published applications
- 85
- Assignees
- 49
- Inventors
- 173
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 3 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 3 | 2 |
| 2007 | 1 | 5 |
| 2008 | 4 | 8 |
| 2009 | 2 | 4 |
| 2010 | 2 | 3 |
| 2011 | 5 | 1 |
| 2012 | 3 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 3 |
| 2015 | 4 | 2 |
| 2016 | 3 | 6 |
| 2017 | 4 | 4 |
| 2018 | 2 | 3 |
| 2019 | 5 | 4 |
| 2020 | 4 | 6 |
| 2021 | 4 | 6 |
| 2022 | 8 | 4 |
| 2023 | 5 | 2 |
| 2024 | 2 | 8 |
| 2025 | 2 | 3 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Method and apparatus for analyzing optical fibers by inducing Brillouin spectroscopy158US 5,623,336 A1997
- Apparatus for measuring distortion position of optical fiber124US 5,394,235 AAndo Electric Co., Ltd. · 1995
- Optical low-coherence reflectometry using optical amplification69US 5,291,267 AHewlett-Packard Company · 1994
- Suppression of stimulated scattering in optical time domain reflectometry50US 5,592,282 AYork Limited · 1997
- Live monitoring of raman and fiber degradation in DWDM networks using in-service OTDR41US 9,419,708 B2Ciena Corporation · 2016