Ophthalmic implant for delivering therapeutic substances
US-2025213388-A1 · Jul 3, 2025 · US
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Campbell Randolph E patents
Campbell Randolph E is listed as an inventor on 64 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Campbell Randolph E |
| Total patents | 64 |
| First publication | Mar 19, 2015 |
| Latest publication | Jul 3, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Implantable ocular drug delivery devices
US-2025127658-A1 · Apr 24, 2025 · US
Expandable drug delivery devices and methods of use
US-12251336-B2 · Mar 18, 2025 · US
Injector apparatus and method for drug delivery
US-2025064634-A1 · Feb 27, 2025 · US
Porous structures for extended release drug delivery devices
US-12201556-B2 · Jan 21, 2025 · US
Ophthalmic implant for delivering therapeutic substances
US-12115102-B2 · Oct 15, 2024 · US
Implantable ocular drug delivery devices
US-12102560-B2 · Oct 1, 2024 · US
Posterior segment drug delivery
US-2023338282-A1 · Oct 26, 2023 · US
Injector apparatus and method for drug delivery
US-11786396-B2 · Oct 17, 2023 · US
Implantable ocular drug delivery devices
US-2023225903-A1 · Jul 20, 2023 · US
Recent patents
Latest publications not already listed above.
Combined drug delivery methods and apparatus
US-11679027-B2 · Jun 20, 2023 · US
Ophthalmic implant for delivering therapeutic substances
US-2023145887-A1 · May 11, 2023 · US
Posterior segment drug delivery
US-11642310-B2 · May 9, 2023 · US
Implantable ocular drug delivery devices
US-11617680-B2 · Apr 4, 2023 · US
Porous structures for extended release drug delivery devices
US-2023072346-A1 · Mar 9, 2023 · US
Fluid exchange apparatus for expandable port delivery system and methods of use
US-2023000676-A1 · Jan 5, 2023 · US
Ophthalmic implant for delivering therapeutic substances
US-11510810-B2 · Nov 29, 2022 · US
Porous structures for extended release drug delivery devices
US-11432959-B2 · Sep 6, 2022 · US
Fluid exchange apparatus for expandable port delivery system and methods of use
US-11419759-B2 · Aug 23, 2022 · US
Expandable drug delivery devices and methods of use
US-2022087863-A1 · Mar 24, 2022 · US
Expandable drug delivery devices and methods of use
US-11110001-B2 · Sep 7, 2021 · US
Therapeutic agent formulations for implanted devices
US-11065151-B2 · Jul 20, 2021 · US
Porous structures for extended release drug delivery devices
US-2021205130-A1 · Jul 8, 2021 · US
Implantable therapeutic device
US-2021196510-A1 · Jul 1, 2021 · US
Therapeutic agent formulations for implanted devices
US-2021113374-A1 · Apr 22, 2021 · US
Posterior segment drug delivery
US-2021025885-A1 · Jan 28, 2021 · US
Combined drug delivery methods and apparatus
US-2020405537-A1 · Dec 31, 2020 · US
Therapeutic agent formulations for implanted devices
US-10874548-B2 · Dec 29, 2020 · US
Fluid exchange apparatus for expandable port delivery system and methods of use
US-2020337897-A1 · Oct 29, 2020 · US
Implantable therapeutic device
US-10813788-B2 · Oct 27, 2020 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Forsight Vision4 Inc | 64 |
| Campbell Randolph E | 5 |
| Macfarlane K Angela | 5 |
| Farinas Kathleen Cogan | 5 |
| Erickson Signe | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A61F9/0017 | 64 |
| A61K9/0051 | 38 |
| A61P27/02 | 30 |
| A61F2250/0068 | 24 |
| A61M39/0208 | 19 |