Invention Grant
- Patent Title: Reusable castings molds
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Application No.: US14575366Application Date: 2014-12-18
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Publication No.: US10022925B2Publication Date: 2018-07-17
- Inventor: Alice Weimin Liu , Gregory L. Herron
- Applicant: Novartis AG
- Applicant Address: CH Basel
- Assignee: Novartis AG
- Current Assignee: Novartis AG
- Current Assignee Address: CH Basel
- Agent Sheng-Hsin Hu
- Main IPC: B29D11/00
- IPC: B29D11/00 ; B23B5/36 ; G02B1/00
Abstract:
The invention is directed to a reusable mold for making a contact lens and the reusable mold has at least one of the mold halves is made from an oxide glass having a Knoop Hardness less than HK 350. The invention is also directed to a method for making an optical part by single point diamond turning an oxide glass having a Knoop Hardness HK less than 350.
Public/Granted literature
- US20150174663A1 REUSABLE CASTINGS MOLDS Public/Granted day:2015-06-25
Information query
