G02B 6/29371
Operating principle based on material dispersion
Official title: {operating principle based on material dispersion}
G02B6/29371 (Operating principle based on material dispersion) appears on 416 US grants and 338 published applications in this corpus.
Search patents in G02B- Granted patents
- 416
- Published applications
- 338
- Assignees
- 167
- Inventors
- 738
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 13 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 23 | 19 |
| 2002 | 46 | 58 |
| 2003 | 53 | 59 |
| 2004 | 48 | 55 |
| 2005 | 35 | 17 |
| 2006 | 28 | 16 |
| 2007 | 18 | 9 |
| 2008 | 19 | 13 |
| 2009 | 6 | 16 |
| 2010 | 5 | 4 |
| 2011 | 9 | 6 |
| 2012 | 8 | 5 |
| 2013 | 7 | 4 |
| 2014 | 3 | 6 |
| 2015 | 9 | 8 |
| 2016 | 5 | 7 |
| 2017 | 7 | 5 |
| 2018 | 7 | 4 |
| 2019 | 4 | 4 |
| 2020 | 3 | 2 |
| 2021 | 2 | 7 |
| 2022 | 4 | 3 |
| 2023 | 4 | 2 |
| 2024 | 2 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dispersive optical elements, devices, systems and methods using the same24 Mar 2026US 12,585,052 B2Battelle Memorial Institute
- Wavelength selective switch30 Dec 2025US 12,510,713 B2Huawei Technologies Co., Ltd.
- Optical router for distributing optical signals14 Oct 2025US 12,445,201 B2
- Short-waveband active optical component based on vertical emitting laser and multi-mode optical fiber17 Dec 2024US 12,169,314 B2II-Vi Delaware, Inc.
- Polymer waveguide and electrical signal transmission method28 May 2024US 11,994,719 B2Huawei Technologies Co., Ltd.
- Wavelength Selective Switch, Optical Switching Node, and Communication System10 Sep 2026US 2026/0267071 A1Huawei Technologies Co., Ltd.
- Wavelength Selective Device and Corresponding Switching Device30 Apr 2026US 2026/0118587 A1Huawei Technologies Co., Ltd.
- Angle insensitive optical arrangement for optical switch23 Apr 2026US 2026/0110850 A1Lumentum Operations LLC
- Optical monitor device, and optical power and wavelength measurement method12 Feb 2026US 2026/0043966 A1Nippon Telegraph and Telephone Corporation
- Compact wavelength selective switch15 Jan 2026US 2026/0016636 A1Molex Incorporated
Most cited
By later US patents
- Planar holographic optical device for beam expansion and display228US 6,169,613 AYeda Research & Devel Co., Ltd. · 2001
- Holographic optical devices for the transmission of optical signals of a plurality of channels222US 5,682,255 AYeda Research and Development Co. Ltd. · 1997
- Planar holographic optical device212US 5,966,223 AYeda Research and Development Co. Ltd. · 1999
- Dispersion compensating devices and systems193US 5,361,319 ACorning Incorporated · 1994
- Method and system for beam expansion in a display device170US 6,805,490 B2Nokia Corporation · 2004