G02F 1/025
In an optical waveguide structure
Official title: in an optical waveguide structure (G02F1/017, {G02F1/2257} take precedence)
G02F1/025 (In an optical waveguide structure) appears on 1,397 US grants and 1,482 published applications in this corpus.
Search patents in G02F- Granted patents
- 1,397
- Published applications
- 1,482
- Assignees
- 432
- Inventors
- 2,187
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 13 | 0 |
| 1997 | 5 | 0 |
| 1998 | 14 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 16 | 3 |
| 2002 | 20 | 24 |
| 2003 | 25 | 55 |
| 2004 | 24 | 37 |
| 2005 | 38 | 39 |
| 2006 | 44 | 26 |
| 2007 | 26 | 23 |
| 2008 | 18 | 20 |
| 2009 | 17 | 22 |
| 2010 | 26 | 30 |
| 2011 | 18 | 32 |
| 2012 | 16 | 32 |
| 2013 | 42 | 34 |
| 2014 | 35 | 49 |
| 2015 | 56 | 70 |
| 2016 | 89 | 91 |
| 2017 | 96 | 92 |
| 2018 | 94 | 76 |
| 2019 | 84 | 89 |
| 2020 | 82 | 85 |
| 2021 | 87 | 92 |
| 2022 | 67 | 88 |
| 2023 | 57 | 78 |
| 2024 | 80 | 102 |
| 2025 | 68 | 99 |
| 2026 | 53 | 94 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Optical modulators and photonic integrated systems1 Sep 2026US 12,724,297 B2Shanghai Xizhi Technology Co., Ltd.
- Diode with light-sensitive intrinsic region1 Sep 2026US 12,727,260 B2Ihp GmbH—Innovations for High Performance Microelectronics/Leibniz-Institut Fur Innovative Mikroelektronik
- High angled photodiode with a refractive-index-modifying region8 Oct 2026US 2026/0310011 A1
- Waveguide structure and method for forming the same8 Oct 2026US 2026/0310012 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Semiconductor photonics device and methods of formation8 Oct 2026US 2026/0310013 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Integrated photodetector with embedded semiconductor region8 Oct 2026US 2026/0310014 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Distributed electro-absorption modulator systems1 Oct 2026US 2026/0299326 A1ElectroPhotonic-IC Inc.
Most cited
By later US patents
- Structure and method for fabricating an electro-optic system having an electrochromic diffraction grating181US 6,498,358 B1Motorola, Inc. · 2002
- Planar optical waveguide, modulator, variable coupler and switch158US 4,166,669 AMassachusetts Institute of Technology · 1979
- Variable optical coupler155US 3,976,358 AInternational Standard Electric Corporation · 1976
- Optoelectronic device for coupling between an external optical wave and a local optical wave for optical modulators and detectors150US 5,625,729 A1997
- Tuning the index of a waveguide structure143US 7,120,338 B2California Institute of Technology · 2006