Multifocal diffractive ophthalmic lenses with evenly spaced echelettes
US-12591149-B2 · Mar 31, 2026 · US
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Das Kamal K patents
Das Kamal K is listed as an inventor on 19 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Das Kamal K |
| Total patents | 19 |
| First publication | Feb 14, 2017 |
| Latest publication | Mar 31, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Intraocular lens with rotational resistance and negative dysphotopsia mitigation
US-2026069402-A1 · Mar 12, 2026 · US
Multi-part intraocular lens with locking mechanism
US-12558213-B2 · Feb 24, 2026 · US
Ophthalmic lens with mitigation and reduction of dysphotopsias
US-12527660-B2 · Jan 20, 2026 · US
Intraocular lens with rotational resistance and negative dysphotopsia mitigation
US-12447008-B2 · Oct 21, 2025 · US
Selection of intraocular lens power based on integrating finite element modeling with machine learning
US-2025316359-A1 · Oct 9, 2025 · US
Modular implant with stabilization
US-2024207043-A1 · Jun 27, 2024 · US
Multi-part intraocular lens with locking mechanism
US-2023120238-A1 · Apr 20, 2023 · US
Multi-curvature edge for ophthalmic lenses
US-11607308-B2 · Mar 21, 2023 · US
Multi-part intraocular lens with locking mechanism
US-11559393-B2 · Jan 24, 2023 · US
Recent patents
Latest publications not already listed above.
Multifocal diffractive ophthalmic lenses with evenly spaced echelettes
US-2022382075-A1 · Dec 1, 2022 · US
Ophthalmic lens with mitigation & reduction of dysphotopsias
US-2022346941-A1 · Nov 3, 2022 · US
Intraocular lens with rotational resistance and negative dysphotopsia mitigation
US-2022192820-A1 · Jun 23, 2022 · US
Multi-part intraocular lens with locking mechanism
US-2021275291-A1 · Sep 9, 2021 · US
Multi-curvature edge for ophthalmic lenses
US-2020197164-A1 · Jun 25, 2020 · US
Hybrid optical edge for an intraocular lens (iol)
US-2019307555-A1 · Oct 10, 2019 · US
Edge design for reducing unwanted photic effects in intraocular lenses
US-9931201-B2 · Apr 3, 2018 · US
Edge design for reducing unwanted photic effects in intraocular lenses
US-2017112613-A1 · Apr 27, 2017 · US
Edge design for reducing unwanted photic effects in intraocular lenses
US-9566150-B2 · Feb 14, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Alcon Inc | 16 |
| Novartis Ag | 3 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A61F2/1613 | 13 |
| A61F2002/1696 | 11 |
| A61F2/1648 | 8 |
| A61F2/16 | 7 |
| A61F2002/1681 | 7 |