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Zeiss announces confirmation of patents
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Carl Zeiss Vision Inc. recently announced that the U.S. Patent and Trademark Office verified Zeiss’ 6,089,713 (‘713) patent after a reexamination was filed by Ocuco Inc. in October 2013.
The USPTO also found that 15 other claims that Zeiss had submitted were patentable, as detailed in a press release.
“We are pleased the USPTO has found all of the original ‘713 patent claims patentable and also granted 15 new claims," Karen Roberts, vice president of customer enablement, said in the release. "These new claims provide specificity regarding the optimization of lenses for vertex distance, binocular vision, frame form and frame fit. This increases the protection for our business and for the businesses of our many licensees.”
According to the company, "The ‘713 patent covers certain types of back-surface freeform progressive lenses and processes by which they are made. These include types of progressive lenses whose front surfaces are rotationally symmetric with the back-surface progressive design determined by the individual prescriptions alone or in combination with other customization options."
Zeiss noted in the release that the company previously won a protracted patent infringement suit against Signet Armorlite in 2012 regarding the same patent and is open to discussions to avoid additional infringement.