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...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 4659522 | Method of spin casting an ophthalmic device with a central aperture A method of making a spin cast contact device having a circular aperture in the center. The central aperture has a thin tapered inner edge. A spin cast concave mold having a raised central area provides the aperture with thin tapered edges. The device is ... | 04/21/1987 |
| 4657363 | Fluorescent corneal color change device A daylight fluorescent cosmetic device for changing the apparent color of the eye. Fluorescent and nonfluorescent pigments are added to the monomer before being polymerized to form the hydrophilic device material. Daylight illumination activates the fluor... | 04/14/1987 |
| 4652099 | Scleral ring A scleral ring of hydrophilic material 0.05 to 0.35 millimeters thick is provided with a circular shape about 16 to 25 millimeters in diameter, or a generally elliptical shape approximately 24 to 30 millimeters long and approximately 12 to 18 millimeters ... | 03/24/1987 |
| 4642112 | Artificial eye lenses A contact lens has a transmission hologram which provides diffractive power on a wavelength and/or amplitude selective basis whereby light from near and distant objects can be focussed on the retina of a presbyopic wearer. Similarly an implant lens can ha... | 02/10/1987 |
| 4640805 | Method of selectively tinting cast lenses A method of coloring predetermined areas of cast contact lenses by placing a coating of soluble dye on the mold surface in the area to be colored. The liquid lens monomer is added to the mold and dissolves the dye from the mold surface before being polyme... | 02/03/1987 |
| 4639105 | Spin cast ocular cosmetic device with color separation A spin cast cosmetic device to be worn on the cornea that changes the apparent color of the eye. The device has color bands of pigments and dyes which are separated by the spin casting operation. Pigment particles migrate and are separated, the dyes do no... | 01/27/1987 |
| 4638025 | Method of pigmenting water-absorbable plastic and products therefrom A colored opacified plastic material containing an organic binder, at least one pigment, a hydrophilic polymerizable plastic material and a cross linking agent is disclosed together with a method of making the same.... | 01/20/1987 |
| 4636212 | Ultraviolet radiation absorbing intraocular lens An intraocular lens capable of absorbing ultraviolet radiation and, additionally, a method for forming the lens is provided. The intraocular lens comprises a polymer matrix that is biocompatible with body tissue and fluids and comprises polymethylmethacry... | 01/13/1987 |
| 4620851 | Method for tinting soft contact lenses A method and apparatus are provided. The method for tinting soft contact lenses comprises the steps of mounting a contact lens to a fixture of the apparatus including an inlet and an outlet for directing predetermined fluids therethrough for engagement wi... | 11/04/1986 |
| 4616910 | Visual indicator on soft contact lenses A soft contact lens is provided with a visual indicator to show that it is not inside out prior to application to the eye. The indicator is such that when viewed from the outside surface of the soft contact lens, it has a distinctly different appearance t... | 10/14/1986 |
| 4615593 | Fluorescent non-optical corneal color change device A non-optical cosmetic device for changing the apparent color of the eye. The colored cosmetic device has a central visual aperture and surrounds the pupil of the eye. Fluorescent pigments are added to the final monomer before being polymerized to form th... | 10/07/1986 |
| 4582402 | Color-imparting contact lenses A colored contact lens comprising a pupil section and an iris section. A colored, opaque, intermittent pattern is deposited over the entire iris section, but a substantial portion within the interstices of the pattern is left uncolored. The lens is capabl... | 04/15/1986 |
| 4576453 | Light-occluding contact lens A contact lens is featured for use by light sensitive wearers. The lens comprises a centrally shaded portion whose shade is optically graded from a relatively darker center to a relatively light or transparent periphery. The diameter of the shade is great... | 03/18/1986 |
| 4559059 | Tinted contact lenses and a method for their preparation Contact lenses comprising polymeric lens materials in which reactive dyestuffs have been covalently bonded to monomer units of the polymer backbone, said reactive dyestuffs being reactive dyes capable of forming ether linkages with cellulose and reactive ... | 12/17/1985 |
| 4558931 | Colored soft contact lens A cosmetic contact lens is lathe cut from a body of stacked discs fused together. The discs are made from hydrophilic polymer, some of which are colored (pigmented or dyed). The pupillary area is formed in a central zone of the lens from a clear layer. Th... | 12/17/1985 |
| 4553975 | Tinted contact lenses and a method for their preparation Contact lenses comprising polymeric lens materials in which reactive dyestuffs have been covalently bonded to monomer units of the polymer backbone, said reactive dyestuffs being reactive dyes capable of forming either linkages with cellulose and reactive... | 11/19/1985 |
| 4551361 | Tintable scratch resistant coating A tintable coating is applied to a transparent substrate such as a polycarbonate lens. The coating is made from a coating solution of (1) a further curable organopolysiloxane preferably made by hydrolyzing methacryloxytrimethoxy silane and vinyl triethoxy... | 11/05/1985 |
| 4547397 | Tintable scratch resistant coating A tintable coating is applied to a transparent substrate such as a polycarbonate lens. The coating is made from a coating solution of (1) a further curable organopolysiloxane preferably made by hydrolyzing ethyl ortho silicate with methacryloxytrimethoxy ... | 10/15/1985 |
| 4525044 | Soft contact lens with surface identification and method of using same A soft contact lens of generally symmetrical concavo-convex configuration and of uniform optical power about its optic axis is provided with an elongated marking in the peripheral portion thereof to permit the user to identify readily the inner surface of... | 06/25/1985 |
| 4518390 | Lens tinting fixture and system utilizing said fixture There is disclosed a fixture or apparatus for use in the tinting of a contact lens or the like. The fixture includes a tube having a body portion and a closed end portion, which includes an annular masking structure to support the lens and define a ring-l... | 05/21/1985 |
| 4472327 | Method of making hydrogel cosmetic contact lenses A method of making cosmetic hydrogel contact lenses which alter the apparent color of the iris by employing small light reflecting particles imbedded in a colored transparent matrix. Cosmetic contact lenses as described herein are of a dual purpose to cor... | 09/18/1984 |
| 4468229 | Tinted contact lenses and a method for their preparation with reactive dyes Contact lenses comprising polymeric lens materials in which reactive dyestuffs have been covalently bonded to monomer units of the polymer backbone, said reactive dyestuffs being reactive dyes capable of forming ether linkages with cellulose and reactive ... | 08/28/1984 |
| 4460523 | Method of making cosmetic contact lenses A method of making cosmetic contact lenses which alter the apparent color of the iris by employing small light reflecting particles imbedded in a colored transparent matrix. Cosmetic contact lenses as described herein are of a dual purpose to correct the ... | 07/17/1984 |
| 4457761 | Method and apparatus for marking contact lenses The method and apparatus for marking of soft contact lenses with identification indicia is disclosed. A film cartridge is provided for supporting a non-gel film having lens marking indicia gel or dye disposed thereon. The cartridge has an opening therein ... | 07/03/1984 |
| 4416814 | Protein polymer hydrogels Protein hydrogel structures formed from natural proteins having an average molecular weight of about 100,000 or less by dissolving the protein in an aqueous acidic solution, subjecting the protein to vapor phase crosslinking with at least two crosslinking... | 11/22/1983 |
| 4349470 | Protein polymer hydrogels Protein hydrogel structures formed from natural proteins having an average molecular weight of about 100,000 or less by dissolving the protein in an aqueous acidic solution, crosslinking the protein, and air drying to a moisture content not exceeding 10 p... | 09/14/1982 |
| 4264493 | Natural protein polymer hydrogels Natural protein hydrogel structures formed from natural proteins having molecular weights not exceeding 100,000 by dissolving the protein in an aqueous acidic solution, crosslinking the protein, and air drying to a moisture content not exceeding 10 percen... | 04/28/1981 |
| 4252421 | Contact lenses with a colored central area Contact lenses and a method of preparing the same in which a central area tinted with particular polymer bound or water insoluble colorants are disclosed.... | 02/24/1981 |
| 4193671 | Identifying means for polymeric contact lenses A method for providing hydrophilic contact lenses with identifying means incorporated into lens blanks and the resulting lenses in which an elongated identifying strand, fiber, or rod is molded into a cylindrical lens blank rod positioned substantially pa... | 03/18/1980 |
| 4157892 | Method of coloring water-absorbable plastics and colored water-absorbable plastics A method of coloring a water-absorbable plastic partially or totally in a single color or multiple colors in such a manner that no migration or separation of the coloring agents used can take place. A copolymer of a coupler monomer and a water-absorbable ... | 06/12/1979 |
| 4102567 | Material for fabrication of artificial intraocular lenses and hard contact lenses Lens material suitable for ophthalmological use including implantation in the eye as an intraocular lens and as an ultra thin contact lens. The lenses are fabricated of polymethylmethacrylate (hereinafter PMMA) which PMMA is characterized by its very high... | 07/25/1978 |
| 3992563 | High toughness synthetic high polymers for soft contact lenses and a process for manufacturing the same A process for manufacturing high toughness synthetic high polymers for soft contact lenses comprising the steps of: preparing a five-component solution by adding to a predominant two-components solution of a 2-hydroxyethyl methacrylate monomer and n-amyl ... | 11/16/1976 |
| 3962505 | Plastic contact lens with magnetic embedded metal ring A block of plastic is provided with a cylindrical well having an axial pillar in its inner portions over which an annular ferrous ring is mounted. A cylindrical plug is inserted in the well along with a mixture of solvent and powder of the same material a... | 06/08/1976 |
