G01M 11/3127
Using multiple or wavelength variable input source
Official title: {using multiple or wavelength variable input source}
G01M11/3127 (Using multiple or wavelength variable input source) appears on 155 US grants and 159 published applications in this corpus.
Search patents in G01M- Granted patents
- 155
- Published applications
- 159
- Assignees
- 89
- Inventors
- 268
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 6 |
| 2003 | 5 | 4 |
| 2004 | 1 | 2 |
| 2005 | 4 | 2 |
| 2006 | 3 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 5 |
| 2009 | 2 | 2 |
| 2010 | 4 | 7 |
| 2011 | 5 | 4 |
| 2012 | 1 | 3 |
| 2013 | 6 | 10 |
| 2014 | 4 | 11 |
| 2015 | 9 | 9 |
| 2016 | 10 | 10 |
| 2017 | 12 | 9 |
| 2018 | 8 | 9 |
| 2019 | 9 | 13 |
| 2020 | 10 | 6 |
| 2021 | 11 | 16 |
| 2022 | 14 | 8 |
| 2023 | 7 | 6 |
| 2024 | 6 | 6 |
| 2025 | 4 | 7 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical time domain reflectometer (OTDR)-based fiber monitoring optimization6 Oct 2026US 12,756,459 B2Viavi Solutions Inc.
- Method and apparatus of single-ended polarization mode dispersion measurement21 Jul 2026US 12,687,459 B2EXFO Inc.
- Optical fiber measurement system19 May 2026US 12,631,520 B2Huawei Technologies Co., Ltd.
- Optical transmission line test equipment and test method3 Feb 2026US 12,540,877 B2NTT, Inc.
- Connection loss difference measurement method, equipment and program3 Feb 2026US 12,540,878 B2NTT, Inc.
- Optical fiber group delay characteristics test equipment and methods3 Sep 2026US 2026/0259106 A1NTT, Inc.
- Single-ended measurement of the spectral transmission response of an optical device under test4 Jun 2026US 2026/0153407 A1EXFO Inc.
- Laser control for intensity otdr using phase-modulated light16 Apr 2026US 2026/0104277 A1Nokia Solutions and Networks Oy
- Denoising optical time-domain reflectometry signals26 Jun 2025US 2025/0207997 A1EXFO Inc.
- Chromatic dispersion measurement8 May 2025US 2025/0146904 A1EXFO Inc.
Most cited
By later US patents
- Broadband light source system and method and light source combiner281US 6,570,659 B2LightLab Imaging, Inc. · 2003
- Apparatus and methods for uniform frequency sample clocking100US 8,049,900 B2Volcano Corporation · 2011
- Bidirectional optical module and optical time domain reflectometer77US 7,853,104 B2Optohub Co., Ltd · 2010
- Fiber optic microbending sensor arrays including microbend sensors sensitive over different bands of wavelengths of light66US 5,118,931 AMcDonnell Douglas Corporation · 1992
- Optical time domain reflectometer57US 7,880,868 B2Yokogawa Electric Corporation · 2011