G01M 11/31
With a light emitter and a light receiver being disposed at the
Official title: {with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers}
G01M11/31 (With a light emitter and a light receiver being disposed at the) appears on 1,197 US grants and 1,074 published applications in this corpus.
Search patents in G01M- Granted patents
- 1,197
- Published applications
- 1,074
- Assignees
- 444
- Inventors
- 2,002
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 11 | 0 |
| 1989 | 9 | 0 |
| 1990 | 17 | 0 |
| 1991 | 24 | 0 |
| 1992 | 16 | 0 |
| 1993 | 14 | 0 |
| 1994 | 16 | 0 |
| 1995 | 20 | 0 |
| 1996 | 20 | 0 |
| 1997 | 15 | 0 |
| 1998 | 14 | 0 |
| 1999 | 16 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 4 |
| 2002 | 21 | 21 |
| 2003 | 22 | 27 |
| 2004 | 27 | 24 |
| 2005 | 23 | 29 |
| 2006 | 36 | 22 |
| 2007 | 22 | 21 |
| 2008 | 25 | 40 |
| 2009 | 15 | 29 |
| 2010 | 19 | 28 |
| 2011 | 26 | 37 |
| 2012 | 29 | 20 |
| 2013 | 30 | 33 |
| 2014 | 30 | 58 |
| 2015 | 43 | 44 |
| 2016 | 46 | 52 |
| 2017 | 58 | 58 |
| 2018 | 58 | 52 |
| 2019 | 57 | 47 |
| 2020 | 52 | 52 |
| 2021 | 50 | 73 |
| 2022 | 66 | 74 |
| 2023 | 52 | 67 |
| 2024 | 51 | 53 |
| 2025 | 52 | 57 |
| 2026 | 44 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Crosstalk measuring method, and crosstalk measuring device6 Oct 2026US 12,754,100 B2Fujikura Ltd.
- Optical time domain reflectometer (OTDR)-based fiber monitoring optimization6 Oct 2026US 12,756,459 B2Viavi Solutions Inc.
- Apparatus and methods for monitoring optical fiber system integrity15 Sep 2026US 12,736,438 B2OneSubsea IP UK Limited
- Measuring device, measuring method, and computer-readable recording medium8 Sep 2026US 12,730,034 B2Yokogawa Electric Corporation
- Circulator cable for use with a pluggable optical time domain reflectometer1 Sep 2026US 12,723,946 B2II-Vi Delaware, Inc.
- Characterizing structural and geometric properties of optical fibers8 Oct 2026US 2026/0309581 A1Corning Incorporated
- Optical fiber characteristic measuring device, optical fiber characteristic measuring method, and variable optical delay device1 Oct 2026US 2026/0298769 A1Yokogawa Electric Corporation
- Methods And Devices For Denoising Optical Time-Domain Reflectometry Signals24 Sep 2026US 2026/0291605 A1
- Method and system for estimating a relative phase difference between light beams17 Sep 2026US 2026/0276479 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Laser absorption and scattered light metrology tool10 Sep 2026US 2026/0266686 A1APPLIED Materials.Inc.
Most cited
By later US patents
- Polarization independent optical coherence-domain reflectometry334US 5,202,745 AHewlett-Packard Company · 1993
- Broadband light source system and method and light source combiner281US 6,570,659 B2LightLab Imaging, Inc. · 2003
- Retractable optical fiber assembly260US 6,915,058 B2Corning Cable Systems LLC · 2005
- De-embedment of optical component characteristics and calibration of optical receivers using rayleigh backscatter197US 6,947,147 B2Agilent Technologies, Inc. · 2005
- Optical time domain reflectometry (OTDR) trace analysis in PON systems169US 8,724,102 B2Telefonaktiebolaget LM Ericsson (publ) · 2014