For the Inventor, By the Inventor

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Menlo Park, CA, United States of America

Pilkington Visioncare, Inc.

USPTO Granted Patents = 11

CIPO Patents = 3

Forward Citations = 469

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26 inventors (with patents filed for the assignee):

Ashok R Thakrar (3 out of 6 patents)

John M Evans (3 out of 10 patents)

Praful Doshi (1 out of 20 patents)

4. James C Powell (1 out of 3 patents)

5. Edgar M Litzaw (1 out of 3 patents)

6. Donald J Ratkowski (1 out of 11 patents)

7. Lisa A Pettigrew (1 out of 1 patent)

8. William J Burke (1 out of 6 patents)

9. Joseph I Weinschenk, Iii (1 out of 1 patent)

10. Norman M Van Houten (1 out of 1 patent)

11. Richard S Skipper (1 out of 1 patent)

12. Peter H Stafford (1 out of 1 patent)

13. John T Phoenix (1 out of 1 patent)

14. Mark J Bedford (1 out of 1 patent)

15. John S Tait (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 5366668 - Polymeric bifocal lens production process (1994-11-22),

2. 5362768 - Hydrogel material (1994-11-08),

3. 5323192 - Method and packaging system for facilitating fabrication of laminated (1994-06-21),

4. 5302978 - Contact lens (1994-04-12),

5. 5238153 - Dispenser for dispersing sterile solutions (1993-08-24),

6. 5170192 - Oxygen permeable bifocal contact lenses and their manufacture (1992-12-08),

7. 5160463 - Method of manufacturing a contact lens (1992-11-03),

8. 5158718 - Contact lens casting (1992-10-27),

9. 5149181 - Lens wafer, laminate lens and method of fabrication thereof (1992-09-22),

10. 5110278 - Injection molding apparatus for producing a toric lens casting mold arbor (1992-05-05),

11. 4940762 - Oxygen permeable lens with hydrolyzable silicon group (1990-07-10),

Pilkington Visioncare, Inc. is a leading provider of vision care products and services. With a focus on innovation and quality, they offer a wide range of eyewear solutions to meet the needs of their diverse clientele. Their team of experienced professionals is dedicated to providing excellent customer service and ensuring the highest level of satisfaction for every patient. Visit their website to learn more about their products and services.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

11 Patents

#98 in Menlo Park, CA

#6,344 in California

#26,752 in US

#50,255 in the World

Menlo Park, CA, United States of America

Pilkington Visioncare, Inc.

Forward Citations = 469

26 inventors:

Ashok R Thakrar (3 out of 6 patents)

John M Evans (3 out of 10 patents)

Praful Doshi (1 out of 20 patents)

4. James C Powell (1 out of 3 patents)

5. Edgar M Litzaw (1 out of 3 patents)

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