For the Inventor, By the Inventor

Enter assignee name

Mentor, OH, United States of America

Volk Optical Inc.

USPTO Granted Patents = 20

% Expired Patents = 10.0

EPO Patents = 1

Trademarks = 30

Forward Citations = 169

Loading Chart...

Loading Chart...

13 inventors (with patents filed for the assignee):

Donald A Volk (11 out of 36 patents)

Steven D Cech (7 out of 20 patents)

Timothy D Edwards (3 out of 3 patents)

4. Gerald Kotnik (3 out of 4 patents)

5. Richard M Mueller (3 out of 3 patents)

6. John Pysarchuk (1 out of 1 patent)

7. Aaron V Weber (1 out of 1 patent)

8. Stephen Jon Lawn (1 out of 1 patent)

9. Sean P McGinnis (1 out of 1 patent)

10. Kakarla V Chalam (1 out of 1 patent)

11. Tim D Edwards (1 out of 1 patent)

12. C Thomas Marek (1 out of 1 patent)

13. Denwood F Ross, Iii (1 out of 21 patents)

20 patents: Sort by Forward Citations

1. 9636012 - Ophthalmic lens assemblies and methods of assembly and use (2017-05-02),

2. 7946706 - Lens assembly for vitreoretinal surgery (2011-05-24),

3. 7940479 - Positioners and microscopes incorporating the same (2011-05-10),

4. 7909464 - Diagnostic ophthalmic lens using extra-low dispersion (ED) material (2011-03-22),

5. 7903331 - Flexible positioner and ophthalmic microscope incorporating the same (2011-03-08),

6. 7499219 - Optimized lens for indirect ophthalmoscopy (2009-03-03),

7. 7338170 - Lens systems for vitreoretinal surgery (2008-03-04),

8. 7244026 - Sterilizable ophthalmoscopy lens system (2007-07-17),

9. D523881 - Ophthalmic lens (2006-06-27),

10. RE37298 - Indirect ophthalmoscopy lens retaining ring (2001-07-31),

11. D438621 - Indirect ophthalmoscopy lens retaining ring (2001-03-07),

12. 6164779 - Ophthalmoscopic viewing system (2000-12-26),

13. D434851 - Indirect ophthalmoscopy lens straight retaining ring (2000-12-05),

14. D434498 - Indirect ophthalmoscopy lens two piece retaining ring (2000-11-28),

15. 5963301 - Lense arrangement for vitreoretinal surgery (1999-10-05),

Volk Optical Inc. is a leading designer and manufacturer of precision optical instruments for the healthcare industry. With a focus on innovation and quality, Volk Optical offers a wide range of products including slit lamps, indirect ophthalmoscopes, and digital imaging systems. Founded in 1977, Volk Optical has a strong reputation for providing high-quality, reliable instruments for eye care professionals around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

Volk Optical Inc.

20 Patents

#12 in Mentor, OH

#714 in Ohio

#16,359 in US

#31,162 in the World

Mentor, OH, United States of America

Volk Optical Inc.

Forward Citations = 169

13 inventors:

Donald A Volk (11 out of 36 patents)

Steven D Cech (7 out of 20 patents)

Timothy D Edwards (3 out of 3 patents)

4. Gerald Kotnik (3 out of 4 patents)

5. Richard M Mueller (3 out of 3 patents)

Please report any incorrect information to [email protected]

Loading…