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For the Inventor, By the Inventor

Watertown, MA, United States of America

Psivida US, Inc.


USPTO Granted Patents = 18

% Expired Patents = 38.9



Trademarks = 4

Forward Citations = 282

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12 inventors (with patents filed for the assignee):

goldMedal Paul Ashton (15 out of 31 patents)

silverMedal Hong Guo (11 out of 17 patents)

bronzeMedal Leigh Trevor Canham (7 out of 42 patents)

4.  Jianbing Chen (5 out of 9 patents)

5.  Christian Barnett (4 out of 5 patents)

6.  Martin Nazzaro (3 out of 7 patents)

7.  Josh York (3 out of 5 patents)

8.  Ron Leblanc (3 out of 5 patents)

9.  Dongling Su (2 out of 19 patents)

10.  David A Watson (1 out of 13 patents)

11.  Robert W Shimizu (1 out of 5 patents)

12.  Kang-Jye Chou (1 out of 1 patent)


18 patents:

1. 9980911 - Bioerodible silicon-based compositions for delivery of therapeutic agents (2018-05-29),
2. 9962396 - Porous silicon drug-eluting particles (2018-05-08),
3. 9849085 - Sustained release drug delivery devices, methods of use, and methods of manufacturing thereof (2017-12-26),
4. 9808421 - Bioerodible silicon-based devices for delivery of therapeutic agents (2017-11-07),
5. 9603801 - Bioerodible silicon-based compositions for delivery of therapeutic agents (2017-03-28),
6. 9566336 - In situ gelling drug delivery system (2017-02-14),
7. 9486459 - Porous silicon drug-eluting particles (2016-11-08),
8. 9333173 - Bioerodible silicon-based devices for delivery of therapeutic agents (2016-05-10),
9. 9192579 - Sustained release drug delivery devices, methods of use, and methods of manufacturing thereof (2015-11-24),
10. 9023896 - Porous silicon drug-eluting particles (2015-05-05),
11. 8871241 - Injectable sustained release delivery devices (2014-10-28),
12. 8815284 - Bioerodible sustained release drug delivery systems (2014-08-26),
13. 8790293 - Injector apparatus with fixed plunger and method of use (2014-07-29),
14. 8574659 - Sustained release drug delivery devices, methods of use, and methods of manufacturing thereof (2013-11-05),
15. 8574613 - Sustained release drug delivery devices, methods of use, and methods of manufacturing thereof (2013-11-05),
Company Overview
Psivida US, Inc. is a biotechnology company based in Watertown, Massachusetts, specializing in the development of innovative drug delivery systems for the treatment of chronic eye diseases. The company focuses on creating sustained-release formulations that enhance therapeutic efficacy and patient compliance. Psivida's proprietary technologies aim to address significant unmet medical needs in ophthalmology, leveraging advanced materials and delivery mechanisms to improve patient outcomes in vision-related health.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

18 Patents

#24 in Watertown, MA

#1,102 in Massachusetts

#17,974 in US

#34,244 in the World

Watertown, MA (US)
Watertown, MA, United States of America

Psivida US, Inc.

Forward Citations = 282

12 inventors:

goldMedal Paul Ashton (15 out of 31 patents)

silverMedal Hong Guo (11 out of 17 patents)

bronzeMedal Leigh Trevor Canham (7 out of 42 patents)

4.  Jianbing Chen (5 out of 9 patents)

5.  Christian Barnett (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Psivida US, Inc.. Retrieved from https://idiyas.com/company/psivida-us

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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