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Fremont, CA, United States of America

Keravision, Inc.

USPTO Granted Patents = 30

Trademarks = 1

Forward Citations = 1,812

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15 inventors (with patents filed for the assignee):

Thomas A Silvestrini (18 out of 78 patents)

Mark L Mathis (10 out of 114 patents)

John Anthony Scholl (7 out of 42 patents)

4. Bryan E Loomas (6 out of 13 patents)

5. William P Kuhn (5 out of 18 patents)

6. Phillip C Baker (5 out of 9 patents)

7. Alvin E Reynolds (5 out of 13 patents)

8. Lauren G Kilmer (5 out of 16 patents)

9. Robert A Proudfoot (3 out of 7 patents)

10. Thomas A Silverstrini (2 out of 4 patents)

11. James M Davenport (2 out of 21 patents)

12. Isidro Matias Gandionco (2 out of 28 patents)

13. Sid Gandionco (1 out of 4 patents)

14. Isidro Gandianco (1 out of 1 patent)

15. Joseph F Paraschac (1 out of 16 patents)

Core Competencies:

Corneal Pocketing Tool

Intrastromal Corneal Ring

Corneal Curvature Adjustment

Electrosurgical Procedure

Distance Measuring Microscope

Biocompatible Material Insertion

Corneal Vacuum Centering

Astigmatic Correction

30 patents: Sort by Forward Citations

1. 6251118 - Radial pocket forming and insert positioning instruments, corneal marker, and method for using same (2001-06-26),

2. 6231582 - Corneal pocketing tool (2001-05-15),

3. 6214044 - Hybrid intrastromal corneal ring (2001-04-10),

4. 6175754 - Method and apparatus for measuring corneal incisions (2001-01-16),

5. 6143010 - Corneal vacuum centering device (2000-11-07),

6. 6125294 - Method and apparatus for measuring corneal incisions (2000-09-26),

7. 6051023 - Corneal curvature adjustment ring and apparatus for making a cornea (2000-04-18),

8. 6050999 - Corneal implant introducer and method of use (2000-04-18),

9. 5944752 - Astigmatic correcting intrastromal corneal insert (1999-08-31),

10. 5888243 - Hybrid intrastromal corneal ring (1999-03-30),

11. 5846256 - Device and method for inserting a biocompatible material into the (1998-12-08),

12. 5824086 - Segmented pre-formed intrastromal corneal insert (1998-10-20),

13. 5785651 - Distance measuring confocal microscope (1998-07-28),

14. 5766171 - Electrosurgical procedure for the treatment of the cornea (1998-06-16),

15. 5693092 - Adjustable devices for corneal curvature adjustment (1997-12-02),

Company Overview

Keravision, Inc. is a biotechnology company based in Fremont, California, specializing in innovative solutions for vision correction. The organization focuses on developing advanced medical devices and technologies aimed at improving ocular health and enhancing visual performance. With a commitment to research and development, Keravision is dedicated to addressing unmet needs in the ophthalmic field, leveraging cutting-edge science to create effective treatments for various eye conditions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

30 Patents

#74 in Fremont, CA

#2,682 in California

#11,279 in US

#21,912 in the World

Fremont, CA, United States of America

Keravision, Inc.

Forward Citations = 1,812

15 inventors:

Thomas A Silvestrini (18 out of 78 patents)

Mark L Mathis (10 out of 114 patents)

John Anthony Scholl (7 out of 42 patents)

4. Bryan E Loomas (6 out of 13 patents)

5. William P Kuhn (5 out of 18 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Keravision, Inc.. Retrieved from https://idiyas.com/company/keravision

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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