G01M 11/3136
For testing of multiple fibers
Official title: {for testing of multiple fibers}
G01M11/3136 (For testing of multiple fibers) appears on 172 US grants and 159 published applications in this corpus.
Search patents in G01M- Granted patents
- 172
- Published applications
- 159
- Assignees
- 98
- Inventors
- 336
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 3 |
| 2008 | 0 | 5 |
| 2009 | 2 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 9 |
| 2012 | 4 | 4 |
| 2013 | 9 | 12 |
| 2014 | 9 | 16 |
| 2015 | 13 | 10 |
| 2016 | 13 | 8 |
| 2017 | 8 | 6 |
| 2018 | 9 | 8 |
| 2019 | 10 | 6 |
| 2020 | 6 | 7 |
| 2021 | 13 | 17 |
| 2022 | 5 | 8 |
| 2023 | 12 | 17 |
| 2024 | 9 | 5 |
| 2025 | 8 | 5 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical fiber measurement system19 May 2026US 12,631,520 B2Huawei Technologies Co., Ltd.
- Optical measurement system12 May 2026US 12,624,971 B2Sintela Limited
- Measuring fiber insertion losses in an optical fiber sensing system31 Mar 2026US 12,590,865 B2Luna Innovations Incorporated
- 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.
- High speed bidirectional test of dual-fiber link3 Sep 2026US 2026/0261338 A1Viavi Solutions Inc.
- Systems and methods for detecting disturbance events in optical fibres6 Aug 2026US 2026/0227209 A1Fiber Sense Limited
- Method and system for testing a fibre optic network6 Aug 2026US 2026/0227280 A1British Telecommunications Public Ltd.Co.
- Method and system for testing a fibre optic network23 Jul 2026US 2026/0213838 A1British Telecommunications Public Ltd.Co.
- Multi-path, smart optical time-domain reflectometer7 May 2026US 2026/0128789 A1AT&T Intellectual Property I, L. P.
Most cited
By later US patents
- Optical time domain reflectometry (OTDR) trace analysis in PON systems169US 8,724,102 B2Telefonaktiebolaget LM Ericsson (publ) · 2014
- Integrated optical waveguide circuit and optical branch line test system using the same68US 5,546,483 ANippon Telegraph and Telephone Corporation · 1996
- Fault location in optical communication systems61US 6,075,628 ANortel Networks Limited · 2000
- Monitoring system for fiber optic cables utilizing an OTDR for detection of signal loss and automatic location of faults in the cable54US 5,093,568 A1992
- Method, apparatus and computer program product for classification of measured data from multi-core optical fiber49US 6,160,614 AAndo Electric Co., Ltd. · 2000