G01M 11/33
With a light emitter being disposed at one fibre or waveguide end-face
Official title: {with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face}
G01M11/33 (With a light emitter being disposed at one fibre or waveguide end-face) appears on 792 US grants and 756 published applications in this corpus.
Search patents in G01M- Granted patents
- 792
- Published applications
- 756
- Assignees
- 391
- Inventors
- 1,626
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 12 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 3 |
| 2002 | 15 | 27 |
| 2003 | 25 | 53 |
| 2004 | 35 | 38 |
| 2005 | 37 | 25 |
| 2006 | 35 | 29 |
| 2007 | 24 | 16 |
| 2008 | 21 | 19 |
| 2009 | 8 | 26 |
| 2010 | 21 | 23 |
| 2011 | 15 | 18 |
| 2012 | 18 | 18 |
| 2013 | 13 | 17 |
| 2014 | 30 | 22 |
| 2015 | 12 | 19 |
| 2016 | 21 | 23 |
| 2017 | 24 | 36 |
| 2018 | 31 | 41 |
| 2019 | 48 | 41 |
| 2020 | 38 | 44 |
| 2021 | 43 | 36 |
| 2022 | 29 | 36 |
| 2023 | 27 | 32 |
| 2024 | 23 | 42 |
| 2025 | 35 | 41 |
| 2026 | 24 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01M 11/335Using two or more input wavelengths163
- G01M 11/331By using interferometer136
- G01M 11/338By measuring dispersion other than pmd132
- G01M 11/333Using modulated input signals129
- G01M 11/336By measuring polarization mode dispersion [pmd]90
- G01M 11/332Using discrete input signals75
- G01M 11/337By measuring polarization dependent loss [pdl]48
Recent patents
- Optical-electronic printed circuit board, parameter determination method, electronic device, and storage medium29 Sep 2026US 12,748,259 B2Zte Corporation
- Optical test device and connector adapter11 Aug 2026US 12,704,435 B2EXFO Inc.
- Illuminating fibers of a fiber optic cable4 Aug 2026US 12,699,024 B2Viavi Solutions Inc.
- Dispersion measuring device, and dispersion measuring method7 Jul 2026US 12,674,720 B2Hamamatsu Photonics K.K.
- Method and system for measurement of optical loss in wafer level testing via wavelength-route division30 Jun 2026US 12,669,405 B2Advanced Micro Foundry Pte. Ltd.
- Methods, apparatus and systems for polarization extinction ratio detection of multi-fiber devices1 Oct 2026US 2026/0298770 A1
- Active traceable fiber optic cable1 Oct 2026US 2026/0303206 A1Panduit Corp.
- Optical fiber characteristic measurement device and optical fiber characteristic measurement method17 Sep 2026US 2026/0276480 A1Toyota School Foundation
- Apparatus and method for measuring angle of inner surface of optical component in high-speed optical transceiver module10 Sep 2026US 2026/0266590 A1Accelight Technologies (Wuhan) Inc.
- Laser absorption and scattered light metrology tool10 Sep 2026US 2026/0266686 A1APPLIED Materials.Inc.
Most cited
By later US patents
- Apparatus and method for the complete characterization of optical devices including loss, birefringence and dispersion effects146US 7,042,573 B2Luna Innovations Incorporated · 2006
- Monitoring for disturbance of optical fiber142US 9,207,168 B2Norscan Instruments Ltd. · 2015
- Fiber breakout with radio frequency identification device136US 7,349,605 B2ADC Telecommunications, Inc. · 2008
- Apparatus for measuring distortion position of optical fiber124US 5,394,235 AAndo Electric Co., Ltd. · 1995
- Loop back plug and method116US 7,565,055 B2ADC Telecommunications, Inc. · 2009