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Class Information
Number: 351/161
Name: Optics: eye examining, vision testing and correcting > Spectacles and eyeglasses > Ophthalmic lenses or blanks > Eye contact type > Multifocal
Description: Subject matter wherein the contact lens comprises two zones of different focal length, one zone to correct the distance vision and another zone to correct the reading vision.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7004585 Ophthalmic lens having an optical zone blend design Feb. 28, 2006
6997553 Contact lens for reshaping the altered corneas of post refractive surgery, previous ortho-K of keratoconus Feb. 14, 2006
6986578 Multifocal ophthalmic lenses Jan. 17, 2006
6971746 Contact lens having a uniform horizontal thickness profile Dec. 6, 2005
6957891 Ophthalmic lens with surface structures Oct. 25, 2005
6951391 Bifocal multiorder diffractive lenses for vision correction Oct. 4, 2005
6942339 Eyeglass manufacturing method using variable index layer Sep. 13, 2005
6939005 Rotationally stabilized contact lenses Sep. 6, 2005
6929366 Multifocal contact lens Aug. 16, 2005
6923540 Toric multifocal contact lenses Aug. 2, 2005
6921168 Translating contact lens having a ramped ridge Jul. 26, 2005
6899425 Multifocal ophthalmic lenses May. 31, 2005
6896368 Multifocal soft contact lens with horizontally decentered lenslet and indicator marking May. 24, 2005
6874887 Multifocal contact lens Apr. 5, 2005
6871953 Contact lens with transition Mar. 29, 2005
6851805 Stabilized electro-active contact lens Feb. 8, 2005
6851803 Ophthalmic lenses with reduced chromatic blur Feb. 8, 2005
6840619 Eyeglass manufacturing method using variable index layer Jan. 11, 2005
6832834 Method for computing a progressive spectacle lens and methods for manufacturing a spectacle lens of this kind Dec. 21, 2004
6814439 Multifocal ophthalmic lens Nov. 9, 2004
6808262 Multifocal contact lens with aspheric surface Oct. 26, 2004
6802605 Contact lens and method for fitting and design Oct. 12, 2004
6802606 Multifocal contact lens pairs Oct. 12, 2004
6786602 Aberration correction spectacle lens Sep. 7, 2004
6773107 Soft translating contact lens for presbyopia Aug. 10, 2004
6764180 Multifocal contact lens and method of making the same Jul. 20, 2004
6752499 Myopia progression control using bifocal contact lenses Jun. 22, 2004
6746119 Soft multifocal contact lens Jun. 8, 2004
6746118 Bifocal contact lens with secondary prism Jun. 8, 2004
6733124 Contact lens May. 11, 2004
6733125 Multi-focal contact lens May. 11, 2004
6712466 Eyeglass manufacturing method using variable index layer Mar. 30, 2004
6709103 Methods for designing multifocal ophthalmic lenses Mar. 23, 2004
6709102 Multifocal contact lens and method of making the same Mar. 23, 2004
6685315 Bifocal lenses Feb. 3, 2004
6659607 Contact lens Dec. 9, 2003
6652095 Orthokeratology and bi-focal contact lens Nov. 25, 2003
6641589 Ophthalmic surgical lens Nov. 4, 2003
RE38193 Contact lens utilizing Stiles-Crawford effect Jul. 22, 2003
6582076 Ophthalmic lenses useful in correcting astigmatism and presbyopia Jun. 24, 2003
6579918 Composite ophthalmic lens Jun. 17, 2003
6554425 Ophthalmic lenses for high order aberration correction and processes for production of the lenses Apr. 29, 2003
6543897 Orthokeratology contact lens Apr. 8, 2003
6540353 Contact lens and process for fitting Apr. 1, 2003
6536899 Multifocal lens exhibiting diffractive and refractive powers Mar. 25, 2003
6533416 Contact or intraocular lens and method for its preparation Mar. 18, 2003
6527389 Multifocal ophthalmic lens Mar. 4, 2003
6520638 Methods for designing multifocal ophthalmic lenses Feb. 18, 2003
6511178 Multifocal ophthalmic lenses and processes for their production Jan. 28, 2003
6474814 Multifocal ophthalmic lens with induced aperture Nov. 5, 2002

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