MATECH, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D458244 Headset with loopdown bandJun 07, 01Jun 04, 02[1401]
D458245 Headset with loopback bandJun 07, 01Jun 04, 02[1401]
5907538 Full duplex communication circuit with a transducer for simultaneously generating audio output and receiving audio inputFeb 18, 97May 25, 99[H04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0186,858 Loopdown and looparound headsetsAbandonedJun 07, 01Dec 12, 02[H04R]
6370245 Full duplex communication circuits with bilateral T hybrid and balanced impedance configurationsExpiredDec 12, 97Apr 09, 02[H04M]

Top Inventors for This Owner

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