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COM 21, INC.
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PHILADELPHIA, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multiple protocol personal communications network system
Patent number
5,926,479
Issue date
Jul 20, 1999
Com 21, Inc.
Paul Baran
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wide area fiber and tv cable fast packet cell network
Patent number
5,870,395
Issue date
Feb 9, 1999
COM 21, Incorporated
Paul Baran
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wide area fiber and TV cable fast packet cell network
Patent number
5,642,351
Issue date
Jun 24, 1997
COM 21, Inc.
Paul Baran
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiple protocol personal communications network system
Patent number
5,550,820
Issue date
Aug 27, 1996
COM 21, Inc.
Paul Baran
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and cell based wide area network alternative access telephon...
Patent number
5,544,164
Issue date
Aug 6, 1996
COM 21, Inc.
Paul Baran
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75632983 - DOXOFFICE
Serial number
75632983
Filing date
Feb 3, 1999
Com 21, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75632994 - DOXPORT
Serial number
75632994
Registration number
2401400
Filing date
Feb 3, 1999
Com 21, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75632997 - DOXPHONE
Serial number
75632997
Filing date
Feb 3, 1999
Com 21, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75632984 - DOXCONTROLLER
Serial number
75632984
Registration number
2742300
Filing date
Feb 3, 1999
Com 21, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75632986 - DOXMANAGER
Serial number
75632986
Filing date
Feb 3, 1999
Com 21, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74241936 - COM 21
Serial number
74241936
Registration number
2037355
Filing date
Jan 31, 1992
COM 21
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments