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

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Examiner: Shehata, M.


Primary examiner statistics: 0 patents; average approval time: N/A
Assistant examiner statistics: 144 patents; average approval time: 825 days

Patents as Primary Examiner

Patent No. Patent Title:
No patents.

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
5479505 Telephone network enclosure containing protected termination devi...
5452352 Automatic dialing system
5442696 Method and apparatus for detecting control signals
5442698 Ringing generator for telephones
5436968 Digital data-dependent ac impedance termination of telephone line
5430796 Auxiliary attenuator arrangement for use in voice-switched speake...
5428681 Apparatus and method for reducing the risk of undesirable paramet...
5422948 Subscriber line interface for improving the frequency characteris...
5422929 Telephone line repeater and method of testing same
5420921 Method for the detection of a disable tone signal of an echo canc...
5420918 Telephone apparatus for invalidating incoming call signals during...
5418849 Procedure and device for adaptive digital cancellation of the ech...
5416837 Telephone network interface enclosure
5408332 Focusing apparatus for video camera or the like
5402483 Digital telephone system with terminals connected to a digital ex...
5371789 Multi-channel echo cancellation with adaptive filters having sele...
5363436 Remotely programmable, vandal-resistant voice communications unit
5361300 Balancing resistor and thermistor network for telephone circuits,...
5347576 Line interface unit retrofit circuit
5333192 Line interface circuit
5333194 Autoequalizing bidirectional-to-unidirectional hybrid network
5333195 Telephone network speech signal enhancement
5329588 Telecommunication line circuit
5323457 Circuit for suppressing white noise in received voice
5315644 Telephone interface circuit
5313519 Protected telephone network interface device
5311588 Call progress detection circuitry and method
5307404 Signal detecting device
5305377 Apparatus for providing an ISDN to analog interface
5289538 Circuit arrangement for signal and information conversion between...
5287404 Telephone subscriber line voltage change detection
5285495 Push-button telephone dialing device with telephone hold function...
5283827 Digital line card for interfacing a remotely located digital tele...
5280521 Portable telephone system
5280524 Bone conductive ear microphone and method
5274701 Telephone alerter
5271059 Method and configuration for forming a line termination of a tele...
5271060 Circuitry for interfacing telecommunications equipment to a ...
5267309 Telephone line unit having programmable read-only memory
5255316 Hands-free telephone apparatus
 
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