G01M 11/336
By measuring polarization mode dispersion [pmd]
Official title: {by measuring polarization mode dispersion [PMD]}
G01M11/336 (By measuring polarization mode dispersion [pmd]) appears on 90 US grants and 79 published applications in this corpus.
Search patents in G01M- Granted patents
- 90
- Published applications
- 79
- Assignees
- 60
- Inventors
- 153
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 9 |
| 2003 | 6 | 9 |
| 2004 | 7 | 8 |
| 2005 | 12 | 6 |
| 2006 | 5 | 6 |
| 2007 | 8 | 6 |
| 2008 | 5 | 5 |
| 2009 | 3 | 7 |
| 2010 | 7 | 5 |
| 2011 | 4 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 3 |
| 2014 | 3 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 1 | 5 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and method for measuring the delay time difference between propagation modes6 Jan 2026US 12,517,008 B2NTT, Inc.
- Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing2 Jan 2024US 11,860,058 B2Viavi Solutions Inc.
- Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing11 May 2021US 11,002,631 B2Viavi Solutions Inc.
- Measuring polarization extinction ratio (PER) using a reference master test jumper (MTJ)11 May 2021US 11,002,632 B2Viavi Solutions Inc.
- Optical characteristic evaluation method and optical characteristic evaluation system5 Jan 2021US 10,883,880 B2Konica Minolta, Inc.
- Apparatus and method for measuring the delay time difference between propagation modes2 Jan 2025US 2025/0003831 A1Nippon Telegraph and Telephone Corporation
- Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing5 Aug 2021US 2021/0239568 A1Viavi Solutions Inc.
- Measuring polarization extinction ratio (per) using a reference master test jumper (mtj)31 Dec 2020US 2020/0408637 A1Viavi Solutions Inc.
- Monitorable hollow core optical fiber3 Dec 2020US 2020/0378864 A1Ciena Corporation
- Optical characteristic evaluation method and optical characteristic evaluation system30 Apr 2020US 2020/0132551 A1Konica Minolta, Inc.
Most cited
By later US patents
- Method and apparatus for measuring polarization mode dispersion in optical devices44US 5,227,623 AHewlett-Packard Company · 1993
- Appliance for measuring polarization mode dispersion and corresponding measuring process39US 5,712,704 APhotonetics · 1998
- Method and apparatus for measuring the polarization characteristics of optical transmission medium30US 5,965,874 AFurukawa Electric Co., Ltd. · 1999
- Determination of a property of an optical device27US 6,606,158 B2Agilent Technologies, Inc. · 2003
- Fiber optic dispersion method and apparatus24US 4,750,833 APrinceton Applied Research Corporation · 1988