Bill Houle

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Clarksburg, WV, US

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Patents Grantslast 30 patents

Information Patent Grant
Ophthalmic lens containing a fresnel surface and method for manufac...
- Patent number 9,242,418
- Issue date Jan 26, 2016
- Essilor International
- Haifeng Shan
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
OPHTHALMIC LENS CONTAINING A FRESNEL SURFACE AND METHOD FOR MANUFAC...
- Publication number 20130120707
- Publication date May 16, 2013
- Haifeng Shan
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL