C08G 2261/57
Photorefractive
Official title: photorefractive, e.g. change of refractive index
C08G2261/57 (Photorefractive) appears on 5 US grants and 6 published applications in this corpus.
Search patents in C08G- Granted patents
- 5
- Published applications
- 6
- Assignees
- 5
- Inventors
- 19
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year.
Recent patents
- Phase contrast film and production method therefor3 Jun 2025US 12,319,782 B2Zeon Corporation
- Resin composition, molded body, optical lens, and optical lens unit17 Sep 2024US 12,091,498 B2Mitsubishi Gas Chemical Company, Inc.
- Scratch-resistant and optically transparent materials and articles21 Dec 2021US 11,203,179 B2Corning Incorporated
- Scratch-resistant and optically transparent materials and articles31 Mar 2020US 10,603,870 B2Corning Incorporated
- Compound for uses in optical and electrooptical devices4 Dec 2018US 10,144,744 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Recording medium, method for recording information, and method for reading information6 Feb 2025US 2025/0046341 A1Panasonic Intellectual Property Management Co., Ltd.
- Phase contrast film and production method therefor8 Sep 2022US 2022/0282028 A1Zeon Corporation
- Resin composition, molded body, optical lens, and optical lens unit27 Jan 2022US 2022/0025110 A1Mitsubishi Gas Chemical Company, Inc.
- Scratch-resistant and optically transparent materials and articles11 Jun 2020US 2020/0180267 A1Corning Incorporated
- Compound for uses in optical and electrooptical devices28 Dec 2017US 2017/0369508 A1Ecole Polytechnique Federale De Lausanne (Epfl)
Most cited
By later US patents