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Patent No. 5719655

System for magnetically attaching templeless eyewear to a person

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

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Attorney: Purwin; P. E.


Number of patents: 5
Last date: June 30, 2009

NumberTitleIssue Date
7553790Enhanced crystal acidity exchange method
The present invention describes a method to increase the activity of a catalyst by first performing an ion exchange step with a potassium ion, followed by performing an ion-exchange step with an ammonium ion. Specifically, the present invention describes a method to...
06/30/2009
7527782ITQ-27, new crystalline microporous material
ITQ-27 (INSTITUTO DE TECNOLOGÍA QUÍMICA number 27) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections be...
05/05/2009
7456319Para-alkylation of aromatic primary amines
A method is provided for producing primarily para alkyl aromatic amines by alkylating a primary aromatic amine with an olefin in the presence of an acid activated clay. ...
11/25/2008
4245229Optical recording medium
An optical recording medium is disclosed which comprises a reflecting material, the surface of which is characterized by cavities of average depth D and of average spacing S such that for incident radiation of wavelength λ, S is less than about λ/20 and...
01/13/1981
4236296Etch method of cleaving semiconductor diode laser wafers
Double heterostructure (Al,Ga)As wafer comprising layers of gallium arsenide and aluminum gallium arsenide on a metallized n-GaAs substrate are separated into individual devices for use as diode lasers. In contrast to prior art techniques of mechanically ...
12/02/1980
 
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