John B.W. Lett

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San Diego, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Multifocal contact lens with aspheric surface
- Patent number 6,808,262
- Issue date Oct 26, 2004
- Novartis AG
- L. Lawrence Chapoy
- G02 - OPTICS
Information Patent Grant
Multifocal aspheric lens
- Patent number 6,457,826
- Issue date Oct 1, 2002
- John B. W. Lett
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Multifocal contact lens with aspheric surface
- Publication number 20020036748
- Publication date Mar 28, 2002
- L. Lawrence Chapoy
- G02 - OPTICS