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For the Inventor, By the Inventor

Philadelphia, PA, United States of America

International Mobile Machines Corporation

USPTO Granted Patents = 43


Trademarks = 1

Forward Citations = 2,067

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37 inventors (with patents filed for the assignee):

goldMedal Graham M Avis (18 out of 45 patents)

silverMedal Eric Paneth (17 out of 27 patents)

bronzeMedal David N Critchlow (14 out of 28 patents)

4.  Karle J Johnson (12 out of 24 patents)

5.  Moshe Yehushua (11 out of 23 patents)

6.  Duane R Bolgiano (11 out of 13 patents)

7.  Sandra J Earlam (9 out of 11 patents)

8.  Bruce A Smetana (9 out of 11 patents)

9.  Gregory L Westling (8 out of 10 patents)

10.  Mark J Handzel (6 out of 15 patents)

11.  Steven Allan Morley (6 out of 36 patents)

12.  Joel M Benjamin, Jr (4 out of 5 patents)

13.  Victor Meyer, Jr (4 out of 5 patents)

14.  Scott David Kurtz (3 out of 38 patents)

15.  Daniel Lin (2 out of 19 patents)


Core Competencies:
Wireless Digital Telephone
Frequency Synthesizer
Communication Signal Compression
Subscriber Unit
Adaptive Equalizer
Base Station Emulator
RF Subscriber System
Digital Time-Multiplexed
Speech and Data Systems
AM Equalizer Circuit
Power Supply System
Monostable System

43 patents:

1. 5212830 - Radio frequency communications system (1993-05-18),
2. 5177741 - Subscriber unit for wireless digital telephone system (1993-01-05),
3. 5168507 - Automatic adaptive equalizer (1992-12-01),
4. 5159705 - Frequency synthesizer circuit (1992-10-27),
5. 5146473 - Subscriber unit for wireless digital subscriber communication system (1992-09-08),
6. 5121391 - Subscriber RF telephone system for providing multiple speech and/or data (1992-06-09),
7. 5119375 - Subscriber RF telephone system for providing multiple speech and/or data (1992-06-02),
8. 5101418 - Digital time-multiplexed quadrature frequency upconverter (1992-03-31),
9. 5072308 - Communication signal compression system and method (1991-12-10),
10. 5022024 - Subscriber RF telephone system for providing multiple speech and/or data (1991-06-04),
11. 5008900 - Subscriber unit for wireless digital subscriber communication system (1991-04-16),
12. 4996697 - Deglitching means for digital communication systems (1991-02-26),
13. 4994802 - Subscriber unit for wireless digital telephone system (1991-02-19),
14. 4974099 - Communication signal compression system and method (1990-11-27),
15. 4953197 - Combination spatial diversity system (1990-08-28),
Company Overview
International Mobile Machines Corporation, based in Philadelphia, PA, specializes in advanced communication technologies. The company focuses on the development of innovative solutions in radio frequency communications and wireless digital telephony. Its expertise encompasses automatic adaptive equalizers, frequency synthesizer circuits, and communication signal compression. Additionally, IMMC is known for its work on spatial diversity systems, digital time-multiplexed upconverters, and base station emulators, contributing significantly to the evolution of mobile communication systems.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

43 Patents

#36 in Philadelphia, PA

#301 in Pennsylvania

#8,104 in US

#16,047 in the World

Philadelphia, PA (US)
Philadelphia, PA, United States of America

International Mobile Machines Corporation

Forward Citations = 2,067

37 inventors:

goldMedal Graham M Avis (18 out of 45 patents)

silverMedal Eric Paneth (17 out of 27 patents)

bronzeMedal David N Critchlow (14 out of 28 patents)

4.  Karle J Johnson (12 out of 24 patents)

5.  Moshe Yehushua (11 out of 23 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: International Mobile Machines Corporation. Retrieved from https://idiyas.com/company/international-mobile-machines

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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