G01M 11/3181
Reflectometers dealing with polarisation
Official title: {Reflectometers dealing with polarisation}
G01M11/3181 (Reflectometers dealing with polarisation) appears on 131 US grants and 116 published applications in this corpus.
Search patents in G01M- Granted patents
- 131
- Published applications
- 116
- Assignees
- 82
- Inventors
- 220
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 5 | 2 |
| 2003 | 2 | 2 |
| 2004 | 7 | 7 |
| 2005 | 5 | 6 |
| 2006 | 7 | 6 |
| 2007 | 6 | 6 |
| 2008 | 9 | 5 |
| 2009 | 0 | 1 |
| 2010 | 1 | 6 |
| 2011 | 5 | 3 |
| 2012 | 2 | 1 |
| 2013 | 2 | 1 |
| 2014 | 2 | 5 |
| 2015 | 2 | 3 |
| 2016 | 5 | 6 |
| 2017 | 8 | 12 |
| 2018 | 6 | 10 |
| 2019 | 11 | 4 |
| 2020 | 6 | 6 |
| 2021 | 7 | 5 |
| 2022 | 2 | 4 |
| 2023 | 3 | 5 |
| 2024 | 7 | 4 |
| 2025 | 3 | 3 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus of single-ended polarization mode dispersion measurement21 Jul 2026US 12,687,459 B2EXFO Inc.
- Optical fiber sensor and change detection method19 May 2026US 12,631,521 B2NEC Corporation
- Optical measurement system12 May 2026US 12,624,971 B2Sintela Limited
- Fiber rotator system for scalable and automated alignment of multiple polarization maintaining fibers13 Jan 2026US 12,523,567 B1Neptec OS, Inc.
- Fiber span characterization utilizing paired optical time domain reflectometers22 Apr 2025US 12,281,959 B2II-Vi Delaware, Inc.
- Optical measurement system8 Jan 2026US 2026/0009659 A1Sintela Limited
- Optical fiber testing using polarization optical time domain reflectometry18 Sep 2025US 2025/0290828 A1
- System and method for cable identification20 Feb 2025US 2025/0060277 A1Verizon Patent and Licensing Inc.
- Method and apparatus of single-ended polarization mode dispersion measurement30 Jan 2025US 2025/0035510 A1EXFO Inc.
- Optical fiber sensor and change detection method29 Aug 2024US 2024/0288335 A1NEC Corporation
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
- Apparatus and method for the complete characterization of optical devices including loss, birefringence and dispersion effects146US 7,042,573 B2Luna Innovations Incorporated · 2006
- Simple high efficiency optical coherence domain reflectometer design143US 7,126,693 B2Carl Zeiss Meditec AG · 2006
- Apparatus and method for the complete characterization of optical devices including loss, birefringence and dispersion effects105US 6,856,400 B1Luna Technologies · 2005