DV

Donald A. Volk

VO Volk Optical: 11 patents #1 of 13Top 8%
📍 Mayfield Heights, OH: #6 of 204 inventorsTop 3%
🗺 Ohio: #1,443 of 73,341 inventorsTop 2%
Overall (All Time): #103,920 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 26–34 of 34 patents

Patent #TitleCo-InventorsDate
5347326 Diagnostic or therapeutic contact lens 1994-09-13
5333017 Indirect ophthalmoscopy lens for use with slit lamp biomicroscope 1994-07-26
5255025 Measurement apparatus for indirect ophthalmoscopy 1993-10-19
5216456 Optical device for use with a slit lamp biomicroscope 1993-06-01
5200773 Diagnostic indirect ophthalmoscopy contact lens system 1993-04-06
5173723 Aspheric ophthalmic accommodating lens design for intraocular lens and contact lens 1992-12-22
5046836 Diagnostic indirect ophthmalmoscopy contact lens system 1991-09-10
4934809 Lens positioning device for indirect biomicroscopy of the eye 1990-06-19
4913545 Adapter for lens retaining ring for use in connection with eye examination 1990-04-03