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AT&T Company

159 Case(s) (Last 5 Years)
www.att.com

Patents Prosecuted

Application numberTitle of the patentIPCFiling DateDecision Date
8079437 Apparatus and method employing fast polarization modulation to reduce effects of polarization hole burning and/or polarization dependent loss Jun 17, 1993 Oct 24, 1994
8075977 Routing to intelligence Jun 10, 1993 Feb 13, 1995
8075087 Optoelectronic switching node Jun 9, 1993 Jul 11, 1994
8074109 Transconductor employing differential pair composite field effect transistors Jun 7, 1993 Dec 12, 1994
8070840 Method of making semiconductor heterostructures of gallium arsenide on germanium May 27, 1993 May 2, 1994
8068869 Arrangement for finding a group of contiguous channels in a channel group May 27, 1993 May 9, 1994
8068359 Data message storage and pick up service May 26, 1993 Feb 20, 1995
8065001 Circuit pack for digital loop carrier tranmission systems May 23, 1993 Jan 16, 1995
8065501 Device processing involving an optical interferometric thermometry May 20, 1993 Nov 20, 1995
8065331 Device fabrication entailing plasma-derived x-ray delineation May 19, 1993 Aug 15, 1994
8063397 Reduced voltage/zero current transition boost power converter May 17, 1993 May 16, 1994
8061753 Surface mount assembly of devices using AdCon interconnections May 13, 1993 Nov 21, 1994
8061143 Method of making a rugged DMOS device May 11, 1993 Mar 6, 1995
8059044 Molded plastic packaging of electronic devices May 6, 1993 Aug 19, 1996
8056213 Technique utilizing stress-induced birefringence for reducing polarization dependent hole-burning in an amplified optical transmission system Apr 29, 1993 May 2, 1994
8056214 Apparatus and method utilizing a rotating waveplate for reducing polarization dependent hole-burning in an amplified optical transmission system Apr 29, 1993 May 2, 1994
8056374 Voltage-tunable photodetector Apr 29, 1993 Jul 11, 1994
8056232 Work at home ACD agent network Apr 29, 1993 Feb 20, 1995
8054947 Photodetector with a resonant cavity Apr 29, 1993 May 23, 1994
8054801 Pawl latch providing a visual indication of closure and a gripping mechanism Apr 27, 1993 Apr 11, 1994
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