The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 1993
Filed:
Apr. 22, 1991
Peter Hagmann, Hosbach-Bahnhof, DE;
Peter Hofer, Aschaffenburg, DE;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
In the process described, a limited number of shaping tools (T.sub.1, T.sub.2, . . . , T.sub.N) having standardized parameters (for the production of the following contact lens parameters: contact lens diameter, radius of curvature of the rear face of the contact lens, vertex refraction) is used for the manufacture of standardized moulds (M.sub.1, M.sub.2, . . . , M.sub.N). Preferably by material-removing machining of the moulds, moulds are produced that have additional altered parameters. The multiplicity of moulds produced in that manner is used for the one-step manufacture (F) of contact lenses (L) having different parameters that largely do not have to be finished.