Diffractive contact lenses
US-2026003210-A1 · Jan 1, 2026 · US
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Pi Ying patents
Pi Ying is listed as an inventor on 12 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pi Ying |
| Total patents | 12 |
| First publication | Jun 22, 2017 |
| Latest publication | Jan 1, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Method for making embedded hydrogel contact lenses
US-2025306246-A1 · Oct 2, 2025 · US
Diffractive contact lenses
US-12379611-B2 · Aug 5, 2025 · US
Method for making embedded hydrogel contact lenses
US-12360289-B2 · Jul 15, 2025 · US
Color mask for embedded contact lenses
US-2024288713-A1 · Aug 29, 2024 · US
Contact lens insert edge design for optimal performance
US-2024288712-A1 · Aug 29, 2024 · US
Diffractive contact lenses
US-2023004023-A1 · Jan 5, 2023 · US
Method for making embedded hydrogel contact lenses
US-2022326412-A1 · Oct 13, 2022 · US
Hybrid diffractive and refractive contact lens for treatment of myopia
US-2021191154-A1 · Jun 24, 2021 · US
Hybrid diffractive and refractive contact lens
US-2021191153-A1 · Jun 24, 2021 · US
Recent patents
Latest publications not already listed above.
Reusable lens molds and methods of use thereof
US-10328645-B2 · Jun 25, 2019 · US
Reusable lens molds and methods of use thereof
US-2017173902-A1 · Jun 22, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Alcon Inc | 10 |
| Novartis Ag | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G02C7/049 | 10 |
| B29D11/00048 | 8 |
| G02B1/043 | 6 |
| B29D11/00057 | 6 |
| C08J3/075 | 6 |