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Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.

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Class 257/E33.04 - Comprising only Group I-III-VI compound (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E33.037. This subclass
No. of applications: 1
Last issue date: 01/20/2011


Application No.Application TitleIssue Date
20110012087SEMICONDUCTOR NANOCRYSTALS
A semiconductor nanocrystal include a first I-III-VI semiconductor material and have a luminescence quantum yield of at least 10%, at least 20%, or at least 30%. The nanocrystal can be substantially free of toxic elements. Populations of the nanocrystals can have an emi... 		01/20/2011
 
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