G02F 1/03
Based on ceramics or electro-optical crystals
Official title: based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect (G02F1/061 takes precedence)
G02F1/03 (Based on ceramics or electro-optical crystals) appears on 2,325 US grants and 1,926 published applications in this corpus.
Search patents in G02F- Granted patents
- 2,325
- Published applications
- 1,926
- Assignees
- 885
- Inventors
- 4,041
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 22 | 0 |
| 1978 | 22 | 0 |
| 1979 | 11 | 0 |
| 1980 | 21 | 0 |
| 1981 | 16 | 0 |
| 1982 | 11 | 0 |
| 1983 | 33 | 0 |
| 1984 | 23 | 0 |
| 1985 | 19 | 0 |
| 1986 | 25 | 0 |
| 1987 | 32 | 0 |
| 1988 | 42 | 0 |
| 1989 | 30 | 0 |
| 1990 | 30 | 0 |
| 1991 | 46 | 0 |
| 1992 | 36 | 0 |
| 1993 | 38 | 0 |
| 1994 | 16 | 0 |
| 1995 | 29 | 0 |
| 1996 | 31 | 0 |
| 1997 | 33 | 0 |
| 1998 | 40 | 0 |
| 1999 | 40 | 0 |
| 2000 | 48 | 0 |
| 2001 | 40 | 14 |
| 2002 | 46 | 71 |
| 2003 | 57 | 79 |
| 2004 | 56 | 53 |
| 2005 | 56 | 66 |
| 2006 | 59 | 62 |
| 2007 | 56 | 53 |
| 2008 | 57 | 47 |
| 2009 | 36 | 64 |
| 2010 | 54 | 58 |
| 2011 | 36 | 46 |
| 2012 | 42 | 35 |
| 2013 | 54 | 49 |
| 2014 | 49 | 58 |
| 2015 | 58 | 66 |
| 2016 | 59 | 52 |
| 2017 | 55 | 56 |
| 2018 | 51 | 91 |
| 2019 | 93 | 82 |
| 2020 | 69 | 87 |
| 2021 | 75 | 130 |
| 2022 | 96 | 113 |
| 2023 | 78 | 135 |
| 2024 | 90 | 128 |
| 2025 | 115 | 120 |
| 2026 | 63 | 111 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/035In an optical waveguide structure1,134
- G02F 1/0305Constructional arrangements671
- G02F 1/055The active material being a ceramic246
- G02F 1/0327Operation of the cell245
- G02F 1/05With ferro-electric properties116
- G02F 1/0338Structurally associated with a photoconductive layer or having photo-refractive properties86
- G02F 1/0344Controlled by a high-frequency electromagnetic wave component in an electric waveguide35
- G02F 1/0333Addressed by a beam of charged particles22
Recent patents
- Electro-optic modulator and methods of forming the same6 Oct 2026US 12,754,444 B2Paragraf Limited
- Electro-optic device containing ferroelectric layer and integrated heaters and method of fabrication thereof29 Sep 2026US 12,748,325 B1Psiquantum, Corp.
- Image projection22 Sep 2026US 12,742,977 B2Dualitas Ltd
- Optical transceiver module with EMI shielding22 Sep 2026US 12,745,378 B2Global Technology Inc.
- Polarizer and display15 Sep 2026US 12,736,842 B2Guangzhou Luxvisions Innovation Technology Limited
- Low-loss plasmonic device and method for manufacturing the same8 Oct 2026US 2026/0309916 A1Polariton Technologies AG
- Tunable on-chip variable ratio optical coupler comprising phase change material8 Oct 2026US 2026/0310015 A1Corning Incorporated
- Optical waveguide element, optical modulator, and optical transmission device1 Oct 2026US 2026/0299328 A1Sumitomo Osaka Cement Co., Ltd.
- Optical waveguide device, and optical modulation device and optical transmission apparatus using same1 Oct 2026US 2026/0299329 A1Sumitomo Osaka Cement Co., Ltd.
- Optical waveguide device and optical modulation device and optical transmission apparatus using the same1 Oct 2026US 2026/0299330 A1Sumitomo Osaka Cement Co., Ltd.
Most cited
By later US patents
- Electrically dimmable rear-view mirror for motor vehicles363US 4,572,619 ADaimler-Benz Aktiengesellschaft · 1986
- Device for modulating and reflecting electromagnetic radiation employing electro-optic layer having a variable index of refraction311US 4,786,128 AQuantum Diagnostics Ltd. · 1988
- Retarder stack for preconditioning light for a modulator having modulation and isotropic states of polarization269US 5,929,946 AColorLink, Inc. · 1999
- Bi-domain two-mode single crystal fiber devices261US 5,082,349 AThe Board of Trustees of the Leland Stanford Junior University · 1992
- Optical waveguide display system234US 5,009,483 A1991