G02F 1/225
In an optical waveguide structure
Official title: in an optical waveguide structure
G02F1/225 (In an optical waveguide structure) appears on 2,432 US grants and 2,569 published applications in this corpus.
Search patents in G02F- Granted patents
- 2,432
- Published applications
- 2,569
- Assignees
- 695
- Inventors
- 3,624
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 13 | 0 |
| 1990 | 8 | 0 |
| 1991 | 17 | 0 |
| 1992 | 15 | 0 |
| 1993 | 15 | 0 |
| 1994 | 22 | 0 |
| 1995 | 10 | 0 |
| 1996 | 15 | 0 |
| 1997 | 23 | 0 |
| 1998 | 27 | 0 |
| 1999 | 21 | 0 |
| 2000 | 15 | 0 |
| 2001 | 35 | 10 |
| 2002 | 30 | 63 |
| 2003 | 57 | 85 |
| 2004 | 60 | 87 |
| 2005 | 67 | 56 |
| 2006 | 65 | 62 |
| 2007 | 55 | 55 |
| 2008 | 56 | 39 |
| 2009 | 45 | 76 |
| 2010 | 57 | 70 |
| 2011 | 47 | 62 |
| 2012 | 42 | 70 |
| 2013 | 63 | 59 |
| 2014 | 82 | 84 |
| 2015 | 95 | 116 |
| 2016 | 118 | 123 |
| 2017 | 135 | 132 |
| 2018 | 117 | 144 |
| 2019 | 163 | 135 |
| 2020 | 126 | 138 |
| 2021 | 122 | 143 |
| 2022 | 129 | 164 |
| 2023 | 103 | 143 |
| 2024 | 120 | 178 |
| 2025 | 126 | 170 |
| 2026 | 81 | 105 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electro-optic device containing ferroelectric layer and integrated heaters and method of fabrication thereof29 Sep 2026US 12,748,325 B1Psiquantum, Corp.
- Photonic devices having a field-effect transistor (FET)29 Sep 2026US 12,748,337 B2Hewlett Packard Enterprise Development LP
- Optical device and method of fabricating thereof22 Sep 2026US 12,742,994 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Optical device, optical transceiving device, and optical transceiver8 Sep 2026US 12,730,347 B2Fujitsu Optical Components Limited
- Method and system for a vertical junction high-speed phase modulator8 Sep 2026US 12,730,348 B2Cisco Technology, Inc.
- Mach-zehnder interferometer tolerant to process and environmental variations8 Oct 2026US 2026/0310040 A1InfiniLink Inc.
- Integrated photonic 2x3 coupler1 Oct 2026US 2026/0299208 A1Cisco Technology, Inc.
- Integrated photonic isolator1 Oct 2026US 2026/0299324 A1Lightmatter, Inc.
- Distributed electro-absorption modulator systems1 Oct 2026US 2026/0299326 A1ElectroPhotonic-IC Inc.
- Optical waveguide element, optical modulator, and optical transmission device1 Oct 2026US 2026/0299328 A1Sumitomo Osaka Cement Co., Ltd.
Most cited
By later US patents
- Microwave receiver front-end assembly and array245US 7,835,600 B1HRL Laboratories, LLC · 2010
- Mach-Zehnder interferometer using photonic band gap crystals229US 6,917,431 B2Massachusetts Institute of Technology · 2005
- Optical modulation apparatus and measurement method198US 5,091,983 A1992
- Optical fiber interferometer with PZT scanning of interferometer arm optical length174US 5,867,268 AOptical Coherence Technologies, Inc. · 1999
- Projection display with electrically controlled waveguide-routing133US 5,724,463 ADeacon Research · 1998