MANDREL FOR USE IN THE MACHINING OF OPHTHALMIC LENSES

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20250108470A1
SERIAL NO

18840919

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A mandrel 1 for holding an ophthalmic lens member blank 52 during machining is disclosed. The mandrel 1 comprises a front surface 6 for receiving an ophthalmic lens member blank 52 to be machined; a rear surface 8 opposite the front surface 6; and one or more through-holes 10 extending between the front and rear surfaces 6,8. In use, wax applied to the rear surface 8 contacts an ophthalmic lens member blank 52 received on the front surface 6 via said one or more through-holes 10. Methods of producing an ophthalmic lens using such a mandrel and lenses produced using such a mandrel are also disclosed.

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Patent Owner(s)

Patent OwnerAddress
COOPERVISION INTERNATIONAL LIMITEDDELTA PARK CONCORDE WAY SEGENSWORTH NORTH FAREHAM PO15 5RL UNITED KINGDOM

International Classification(s)

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  • 2023 Application Filing Year
  • B24B Class
  • 521 Applications Filed
  • 104 Patents Issued To-Date
  • 19.97 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
EVANS, Edward James Harley Southampton, GB 4 0
RICKETTS, David Southampton, GB 6 25

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