G02F 1/055
The active material being a ceramic
Official title: the active material being a ceramic (G02F1/035 takes precedence)
G02F1/055 (The active material being a ceramic) appears on 246 US grants and 90 published applications in this corpus.
Search patents in G02F- Granted patents
- 246
- Published applications
- 90
- Assignees
- 119
- Inventors
- 387
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 13 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 11 | 0 |
| 1990 | 5 | 0 |
| 1991 | 14 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 2 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 5 |
| 2002 | 8 | 14 |
| 2003 | 10 | 11 |
| 2004 | 6 | 3 |
| 2005 | 5 | 10 |
| 2006 | 5 | 6 |
| 2007 | 7 | 4 |
| 2008 | 6 | 2 |
| 2009 | 2 | 2 |
| 2010 | 4 | 3 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 4 |
| 2016 | 2 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 3 |
| 2019 | 0 | 1 |
| 2020 | 1 | 4 |
| 2021 | 3 | 5 |
| 2022 | 3 | 1 |
| 2023 | 3 | 3 |
| 2024 | 2 | 1 |
| 2025 | 2 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G02F 1/0551Constructional details93
- G02F 1/0555Operation of the cell35
- G02F 1/0553Specially adapted for gating or modulating in optical waveguides27
- G02F 1/0556Specially adapted for a particular application23
- G02F 1/0558Structurally associated with a photoconductive layer or exhibiting photo-refractive properties17
Recent patents
- Diffusion barrier layer in lithium niobate-containing photonic devices20 May 2025US 12,306,481 B2HyperLight Corporation
- Heterogeneous integration and electro-optic modulation of III-nitride photonics on a silicon photonic platform8 Apr 2025US 12,271,068 B2Rtx Bbn Technologies, Inc.
- Optical isolator20 Aug 2024US 12,066,698 B2Shin-Etsu Chemical Co., Ltd.
- Apparatus for plasmonic nanoantenna optical beam phase-shifter and steerer23 Jul 2024US 12,044,912 B2Huawei Technologies Canada Co., Ltd.
- Functional element housing package, and semiconductor device and LN modulator14 Nov 2023US 11,815,749 B2KYOCERA Corporation
- Optical isolator for use in wavelength band of 780 to 820 nm10 Sep 2026US 2026/0267178 A1Shin-Etsu Chemical Co., Ltd.
- Encapsulation of thin film lithium-containing films for 3 dimensional integration13 Aug 2026US 2026/0235898 A1
- Dielectric thin film deposited substrate, dielectric thin film deposited substrate manufacturing method, optical waveguide element, and optical modulation element23 Apr 2026US 2026/0110929 A1TDK Corporation
- Diffusion barrier layer in lithium niobate-containing photonic devices4 Dec 2025US 2025/0370281 A1
- Electro-optical modulator with an integrated memory device13 Mar 2025US 2025/0085574 A1
Most cited
By later US patents
- Electrically dimmable rear-view mirror for motor vehicles363US 4,572,619 ADaimler-Benz Aktiengesellschaft · 1986
- Optical lens structure and control system for maintaining a selected constant level of transmitted light at a wearer's eyes218US 5,654,786 A1997
- Optical modulator159US 6,046,837 AFuji Photo Film Co., Ltd. · 2000
- Electro-optical digital display156US 3,955,190 AKabushiki Kaisha Suwa Seikosha · 1976
- Variable color electrooptic display152US 4,630,040 AMotorola, Inc. · 1986