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PHILADELPHIA, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Radio frequency communications system
Patent number
5,212,830
Issue date
May 18, 1993
International Mobile Machines Corporation
Craig Miller
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber unit for wireless digital telephone system
Patent number
5,177,741
Issue date
Jan 5, 1993
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic adaptive equalizer
Patent number
5,168,507
Issue date
Dec 1, 1992
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency synthesizer circuit
Patent number
5,159,705
Issue date
Oct 27, 1992
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber unit for wireless digital subscriber communication system
Patent number
5,146,473
Issue date
Sep 8, 1992
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber RF telephone system for providing multiple speech and/or...
Patent number
5,121,391
Issue date
Jun 9, 1992
International Mobile Machines
Eric Paneth
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital time-multiplexed quadrature frequency upconverter
Patent number
5,101,418
Issue date
Mar 31, 1992
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication signal compression system and method
Patent number
5,072,308
Issue date
Dec 10, 1991
International Mobile Machines Corporation
Daniel Lin
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Interpolator for varying a signal sampling rate
Patent number
5,067,141
Issue date
Nov 19, 1991
International Mobile Machine Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber RF telephone system for providing multiple speech and/or...
Patent number
5,022,024
Issue date
Jun 4, 1991
International Mobile Machines Corporation
Eric Paneth
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber unit for wireless digital subscriber communication system
Patent number
5,008,900
Issue date
Apr 16, 1991
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Deglitching means for digital communication systems
Patent number
4,996,697
Issue date
Feb 26, 1991
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber unit for wireless digital telephone system
Patent number
4,994,802
Issue date
Feb 19, 1991
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication signal compression system and method
Patent number
4,974,099
Issue date
Nov 27, 1990
International Mobile Machines Corporation
Daniel Lin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Combination spatial diversity system
Patent number
4,953,197
Issue date
Aug 28, 1990
International Mobile Machines Corporation
John D. Kaewell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber unit for wireless digital telephone system
Patent number
4,943,983
Issue date
Jul 24, 1990
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Band-pass filter and support structure therefor
Patent number
4,940,956
Issue date
Jul 10, 1990
International Mobile Machines Corporation
William J. Garner
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Base station emulator
Patent number
4,935,927
Issue date
Jun 19, 1990
International Mobile Machines Corporation
John D. Kaewell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber RF telephone system for providing multiple speech and/or...
Patent number
4,912,705
Issue date
Mar 27, 1990
International Mobile Machines Corporation
Eric Paneth
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital signals and frequency correction in a digital wireless system
Patent number
4,893,317
Issue date
Jan 9, 1990
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
AM equalizer circuit for digital systems
Patent number
4,881,240
Issue date
Nov 14, 1989
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency synthesizer for broadcast telephone system having multipl...
Patent number
4,862,107
Issue date
Aug 29, 1989
International Mobile Machines Corporation
Eric Paneth
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Subscriber unit for wireless digital telephone system
Patent number
4,825,448
Issue date
Apr 25, 1989
International Mobile Machines Corporation
David N. Critchlow
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Subscriber RF telephone system for providing multiple speech and/or...
Patent number
4,817,089
Issue date
Mar 28, 1989
International Mobile Machines Corporation
Eric Paneth
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Initialization of communication channel between a subsciber station...
Patent number
4,811,420
Issue date
Mar 7, 1989
International Mobile Machines Corporation
Graham M. Avis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency synthesizer for broadcast telephone system having multipl...
Patent number
4,785,260
Issue date
Nov 15, 1988
International Mobile Machines Corporation
Eric Paneth
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus and method for obtaining frequency agility in digital com...
Patent number
4,785,450
Issue date
Nov 15, 1988
International Mobile Machines Corporation
Duane R. Bolgiano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modem for RF subscriber telephone system
Patent number
4,764,940
Issue date
Aug 16, 1988
International Mobile Machines Corporation
Eric Paneth
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Rotary dial decoder
Patent number
4,446,339
Issue date
May 1, 1984
International Mobile Machines Corporation
Duane R. Bolgiano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Filter-type pulse detection means
Patent number
4,081,130
Issue date
Mar 28, 1978
International Mobile Machines Corporation
Duane Ridgely Bolgiano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74326372 - INTERDIGITAL
Serial number
74326372
Registration number
1912057
Filing date
Oct 29, 1992
INTERNATIONAL MOBILE MACHINES CORPORATION
37 - Building construction
Information
Trademark
74326373 - INTERDIGITAL
Serial number
74326373
Registration number
1940157
Filing date
Oct 29, 1992
INTERNATIONAL MOBILE MACHINES CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74263688 - LOGIC PHONE
Serial number
74263688
Filing date
Apr 8, 1992
INTERNATIONAL MOBILE MACHINES CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74263689 - LOGIC PHONE
Serial number
74263689
Filing date
Apr 8, 1992
INTERNATIONAL MOBILE MACHINES CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74050798 - E-TDMA
Serial number
74050798
Registration number
1657215
Filing date
Apr 19, 1990
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73789464 - THE FUTURE WORKS TODAY
Serial number
73789464
Registration number
1569438
Filing date
Mar 27, 1989
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73769553 - ULTRASPECTRUM
Serial number
73769553
Registration number
1550015
Filing date
Dec 15, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73764824 - INTERBAND NETWORK
Serial number
73764824
Registration number
1546249
Filing date
Nov 21, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73763957 - RADIOTON
Serial number
73763957
Registration number
1545262
Filing date
Nov 16, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73763958 - OPTIOTON
Serial number
73763958
Registration number
1545263
Filing date
Nov 16, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73747641 - INFORMATION AGE DIALTONE: ANYTIME, ANYWHERE
Serial number
73747641
Registration number
1541341
Filing date
Aug 22, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73747642 - WIRELESS DIGITAL ACCESS
Serial number
73747642
Registration number
1561663
Filing date
Aug 22, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73707561 - THE DIFFERENCE IS DIGITAL
Serial number
73707561
Registration number
1669212
Filing date
Jan 25, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73706398 - WIRELESS DIGITAL LOOP CARRIER
Serial number
73706398
Registration number
1516067
Filing date
Jan 19, 1988
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73701255 - ULTRASPECTRUM
Serial number
73701255
Filing date
Dec 16, 1987
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73686635 - ULTRAPHONE
Serial number
73686635
Registration number
1497677
Filing date
Sep 28, 1987
International Mobile Machines Corporation
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
73638261 - ULTRAPHONE
Serial number
73638261
Registration number
1458079
Filing date
Jan 5, 1987
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73638370 - IMM
Serial number
73638370
Registration number
1455048
Filing date
Jan 5, 1987
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73434335 - MICROSENTRY
Serial number
73434335
Filing date
Jul 13, 1983
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73403523 - ULTRANET
Serial number
73403523
Registration number
1291947
Filing date
Nov 22, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73377024 - COMPUTER SENTRY
Serial number
73377024
Filing date
Sep 16, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73349025 - T.A.C.T.
Serial number
73349025
Registration number
1235652
Filing date
Feb 8, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73349060 - PRIVEX
Serial number
73349060
Registration number
1244276
Filing date
Feb 8, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73349026 - V.I.D.T.
Serial number
73349026
Registration number
1235653
Filing date
Feb 8, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73349022 - PRIVENET
Serial number
73349022
Registration number
1240079
Filing date
Feb 8, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73349061 - P.P.X.
Serial number
73349061
Registration number
1241917
Filing date
Feb 8, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73349024 - ELECTRONIC RECEPTIONIST
Serial number
73349024
Registration number
1224070
Filing date
Feb 8, 1982
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73326882 - IMM
Serial number
73326882
Registration number
1203233
Filing date
Sep 8, 1981
International Mobile Machines Corporation
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
73259357 - ULTRAPHONE
Serial number
73259357
Registration number
1179928
Filing date
Apr 23, 1980
International Mobile Machines Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73253392 - PRIVECODE
Serial number
73253392
Registration number
1164478
Filing date
Mar 10, 1980
INTERNATIONAL MOBILE MACHINES CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments