U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"

David Sarnoff, American radio pioneer ; 1921

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 257/E33.031 - Including ternary or quaternary compound (e.g., AlGaAs) (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E33.023. This subclass
No. of patents: 1
Last issue date: 05/20/2008


NumberTitleIssue Date
7374959Two-wavelength semiconductor laser device and method of manufacturing the same
A two-wavelength semiconductor laser device includes a first conductive material substrate having thereon first and second regions separated from each other. A first semiconductor laser diode is formed on the first region. A non-active layer is formed on the second ... 		05/20/2008
 
Sign InRegister
Username  
Password   
forgot password?