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NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:026947/0520   Pages: 13
Recorded: 09/22/2011
Attorney Dkt #:1974-090220
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Total properties: 48
1
Patent #:
5473666
Issue Dt:
12/05/1995
Application #:
07944204
Filing Dt:
09/11/1992
Title:
METHOD AND APPARATUS FOR DIGITALLY CONTROLLING GAIN IN A TALKING PATH
2
Patent #:
5457743
Issue Dt:
10/10/1995
Application #:
08035090
Filing Dt:
03/22/1993
Title:
METALLIC CHANNEL UNIT NETWORK
3
Patent #:
5552881
Issue Dt:
09/03/1996
Application #:
08210315
Filing Dt:
03/17/1994
Title:
METHOD AND APPARATUS FOR SCANNING A FIBER OPTIC NETWORK
4
Patent #:
5699402
Issue Dt:
12/16/1997
Application #:
08311802
Filing Dt:
09/26/1994
Title:
METHOD AND APPARATUS FOR FAULT SEGMENTATION IN A TELEPHONE NETWORK
5
Patent #:
5586181
Issue Dt:
12/17/1996
Application #:
08336315
Filing Dt:
11/09/1994
Title:
METALLIC CHANNEL UNIT NETWORK
6
Patent #:
5644617
Issue Dt:
07/01/1997
Application #:
08371734
Filing Dt:
01/12/1995
Title:
METHOD AND APPARATUS FOR TESTING CABLES
7
Patent #:
5706333
Issue Dt:
01/06/1998
Application #:
08393764
Filing Dt:
02/24/1995
Title:
METHOD AND APPARATUS FOR ANALYZING CELLULAR TELEPHONE NETWORK
8
Patent #:
5640433
Issue Dt:
06/17/1997
Application #:
08566898
Filing Dt:
12/04/1995
Title:
TELECOMMUNICATION TEST SYSTEM
9
Patent #:
5652712
Issue Dt:
07/29/1997
Application #:
08567140
Filing Dt:
12/04/1995
Title:
METHOD AND APPARATUS FOR CALIBRATION OF DIGITAL TEST EQUIPMENT
10
Patent #:
5881130
Issue Dt:
03/09/1999
Application #:
08929842
Filing Dt:
09/15/1997
Title:
FAST AND NOISE-INSENSITIVE LOAD STATUS DETECTION
11
Patent #:
5870451
Issue Dt:
02/09/1999
Application #:
08965360
Filing Dt:
11/06/1997
Title:
METHOD AND APPARATUS FOR HIGH IMPEDANCE RINGER DETECTION
12
Patent #:
6320939
Issue Dt:
11/20/2001
Application #:
09142528
Filing Dt:
09/09/1998
Title:
REMOTE TELEPHONY TESTING DEVICE
13
Patent #:
6026145
Issue Dt:
02/15/2000
Application #:
09211338
Filing Dt:
12/14/1998
Title:
METHOD AND APPARATUS FOR FAULT SEGMENTATION IN A TELEPHONE NETWORK
14
Patent #:
6385297
Issue Dt:
05/07/2002
Application #:
09285954
Filing Dt:
04/02/1999
Publication #:
US20010012333
Pub Dt:
08/09/2001
Title:
METHOD AND APPARATUS FOR QUALIFYING LOOPS FOR DATA SERVICES
15
Patent #:
6285744
Issue Dt:
09/04/2001
Application #:
09402693
Filing Dt:
12/22/1999
Title:
TELEPHONY TEST SYSTEM WITH ADJUSTABLE OUTPUT IMPEDANCE
16
Patent #:
6389109
Issue Dt:
05/14/2002
Application #:
09410222
Filing Dt:
09/30/1999
Title:
FAULT CONDITIONS AFFECTING HIGH SPEED DATA SERVICES
17
Patent #:
6487276
Issue Dt:
11/26/2002
Application #:
09410237
Filing Dt:
09/30/1999
Title:
DETECTING FAULTS IN SUBSCRIBER TELEPHONE LINES
18
Patent #:
6453015
Issue Dt:
09/17/2002
Application #:
09508622
Filing Dt:
06/05/2000
Title:
TELEPHONY TESTING SYSTEM
19
Patent #:
6590962
Issue Dt:
07/08/2003
Application #:
09598595
Filing Dt:
06/21/2000
Title:
METHOD OF PERFORMING NON-INTERACTIVE RESISTIVE FAULT LOCATION
20
Patent #:
6985444
Issue Dt:
01/10/2006
Application #:
09692169
Filing Dt:
10/19/2000
Title:
BINNING OF RESULTS FROM LOOP QUALIFICATION TESTS
21
Patent #:
6522723
Issue Dt:
02/18/2003
Application #:
09701721
Filing Dt:
02/08/2001
Title:
TELEPHONY LINE TEST UNIT AND METHOD
22
Patent #:
6574311
Issue Dt:
06/03/2003
Application #:
09792726
Filing Dt:
02/23/2001
Title:
APPARATUS AND METHOD FOR DETECTING A BRIDGED TAP AND/OR AN END-OF-LINE OF A CONVENTIONAL TELEPHONE LINE USING DELAY-LINE TIME-DOMAIN REFLECTOMETRY
23
Patent #:
6531879
Issue Dt:
03/11/2003
Application #:
09868482
Filing Dt:
06/18/2001
Title:
METHOD AND APPARATUS FOR DELAY-LINE TIME-DOMAIN REFLECTOMETRY
24
Patent #:
6970429
Issue Dt:
11/29/2005
Application #:
09872958
Filing Dt:
06/01/2001
Publication #:
US20010053129
Pub Dt:
12/20/2001
Title:
METHOD AND APPARATUS FOR MEASURING INTERNET ROUTER TRAFFIC
25
Patent #:
7012991
Issue Dt:
03/14/2006
Application #:
10019589
Filing Dt:
12/20/2001
Title:
QUALIFYING TELEPHONE LINES FOR DATA TRANSMISSION
26
Patent #:
6650732
Issue Dt:
11/18/2003
Application #:
10109439
Filing Dt:
03/28/2002
Publication #:
US20020110222
Pub Dt:
08/15/2002
Title:
TELEPHONY TESTING SYSTEM
27
Patent #:
6826258
Issue Dt:
11/30/2004
Application #:
10176014
Filing Dt:
06/20/2002
Publication #:
US20030235274
Pub Dt:
12/25/2003
Title:
SYSTEM AND METHOD FOR PRE-QUALIFICATION OF TELEPHONE LINES FOR DSL SERVICE USING AN AVERAGE LOOP LOSS
28
Patent #:
6894504
Issue Dt:
05/17/2005
Application #:
10220716
Filing Dt:
11/26/2002
Publication #:
US20030147508
Pub Dt:
08/07/2003
Title:
TECHNIQUE FOR ESTIMATION OF A SUBSCRIBER LINE INSERTION LOSS
29
Patent #:
7529348
Issue Dt:
05/05/2009
Application #:
10332777
Filing Dt:
12/22/2003
Publication #:
US20040114527
Pub Dt:
06/17/2004
Title:
METHOD OF PERFORMING INSERTION LOSS ESTIMATION
30
Patent #:
7042983
Issue Dt:
05/09/2006
Application #:
10399641
Filing Dt:
07/30/2003
Publication #:
US20040028189
Pub Dt:
02/12/2004
Title:
METHOD AND APPARATUS FOR BRIDGED TAP IMPACT ANALYSIS
31
Patent #:
7433323
Issue Dt:
10/07/2008
Application #:
10479431
Filing Dt:
04/30/2004
Publication #:
US20050025189
Pub Dt:
02/03/2005
Title:
REMOTE TESTING OF HIGH SPEED DATA AND VOICE COMMUNICATION NETWORKS
32
Patent #:
7356127
Issue Dt:
04/08/2008
Application #:
10509963
Filing Dt:
05/11/2005
Publication #:
US20050220275
Pub Dt:
10/06/2005
Title:
GLOBAL DIGITAL MEASUREMENT DEVICE
33
Patent #:
7386039
Issue Dt:
06/10/2008
Application #:
10672821
Filing Dt:
09/26/2003
Publication #:
US20050069029
Pub Dt:
03/31/2005
Title:
METHOD AND APPARATUS FOR IDENTIFYING FAULTS IN A BROADBAND NETWORK
34
Patent #:
7653180
Issue Dt:
01/26/2010
Application #:
10956170
Filing Dt:
10/01/2004
Publication #:
US20060109979
Pub Dt:
05/25/2006
Title:
METHOD FOR ASSESSING DSL CAPABILITY OF TELEPHONE LINES
35
Patent #:
7529347
Issue Dt:
05/05/2009
Application #:
10956605
Filing Dt:
10/01/2004
Publication #:
US20060072708
Pub Dt:
04/06/2006
Title:
TEST SYSTEM FOR ASSESSING DSL CAPABILITY OF TELEPHONE LINES
36
Patent #:
7515691
Issue Dt:
04/07/2009
Application #:
10956816
Filing Dt:
10/01/2004
Publication #:
US20070230667
Pub Dt:
10/04/2007
Title:
METHOD FOR TESTING DSL CAPABILITY OF TELEPHONE LINES
37
Patent #:
7071703
Issue Dt:
07/04/2006
Application #:
11005055
Filing Dt:
12/06/2004
Publication #:
US20050094785
Pub Dt:
05/05/2005
Title:
TECHNIQUE FOR ESTIMATION OF A SUBSCRIBER LINE INSERTION LOSS
38
Patent #:
7436935
Issue Dt:
10/14/2008
Application #:
11007970
Filing Dt:
12/09/2004
Publication #:
US20050135567
Pub Dt:
06/23/2005
Title:
QUALIFYING TELEPHONE LINES FOR DATA TRANSMISSION
39
Patent #:
7602885
Issue Dt:
10/13/2009
Application #:
11322105
Filing Dt:
12/29/2005
Publication #:
US20070153981
Pub Dt:
07/05/2007
Title:
AUTOMATIC PROVISIONING OF A TELEPHONE LINE TEST SYSTEM
40
Patent #:
7235979
Issue Dt:
06/26/2007
Application #:
11334239
Filing Dt:
01/18/2006
Publication #:
US20060159231
Pub Dt:
07/20/2006
Title:
APPARATUS AND METHOD FOR MEASURING LOOP INSERTION LOSS SINGLE-ENDEDLY
41
Patent #:
7508218
Issue Dt:
03/24/2009
Application #:
11752664
Filing Dt:
05/23/2007
Publication #:
US20070263776
Pub Dt:
11/15/2007
Title:
APPARATUS AND METHOD FOR MEASURING LOOP INSERTION LOSS SINGLE-ENDEDLY
42
Patent #:
7508219
Issue Dt:
03/24/2009
Application #:
11752963
Filing Dt:
05/24/2007
Publication #:
US20070263777
Pub Dt:
11/15/2007
Title:
APPARATUS AND METHOD FOR MEASURING LOOP INSERTION LOSS SINGLE-ENDEDLY
43
Patent #:
8401061
Issue Dt:
03/19/2013
Application #:
12307824
Filing Dt:
02/09/2010
Publication #:
US20100128768
Pub Dt:
05/27/2010
Title:
METHOD AND APPARATUS FOR REMOTELY TESTING A DIGITAL SUBSCRIBER LINE ACCESS MULTIPLEXER
44
Patent #:
8065099
Issue Dt:
11/22/2011
Application #:
12341300
Filing Dt:
12/22/2008
Publication #:
US20090240449
Pub Dt:
09/24/2009
Title:
POWER DISTRIBUTION MONITORING SYSTEM AND METHOD
45
Patent #:
8536857
Issue Dt:
09/17/2013
Application #:
12503417
Filing Dt:
07/15/2009
Publication #:
US20100013457
Pub Dt:
01/21/2010
Title:
POWER LINE TAKEOFF CLAMP ASSEMBLY
46
Patent #:
8923139
Issue Dt:
12/30/2014
Application #:
12668354
Filing Dt:
06/30/2010
Publication #:
US20100278050
Pub Dt:
11/04/2010
Title:
SYSTEM AND METHOD FOR MAKING FAR END MEASUREMENTS FOR DSL DIAGNOSTICS
47
Patent #:
D622583
Issue Dt:
08/31/2010
Application #:
29317219
Filing Dt:
04/24/2008
Title:
LINE CLAMP
48
Patent #:
D640537
Issue Dt:
06/28/2011
Application #:
29368446
Filing Dt:
08/24/2010
Title:
LINE CLAMP
Assignor
1
TOLLGRADE COMMUNICATIONS, INC. (DELAWARE)
Exec Dt:
08/31/2011
Assignee
1
TOLLGRADE COMMUNICATIONS, INC. (PENNSYLVANIA)
3120 UNIONVILLE ROAD, SUITE 400
CRANBERRY TOWNSHIP, PENNSYLVANIA 16066
Correspondence name and address
THE WEBB LAW FIRM
420 FT. DUQUESNE BLVD., SUITE 1200
ONE GATEWAY CENTER
PITTSBURGH, PA 15222

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