Minnetonka, MN, United States of America

Northern Telecom Systems Corporation

Calculating rank

USPTO Granted Patents = 3

Forward Citations = 19

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3 inventors (with patents filed for the assignee):

Dewey McKinley Sims, Jr (2 out of 52 patents)

William E Hines (1 out of 1 patent)

Verne L Severson (1 out of 4 patents)

3 patents: Sort by Forward Citations

1. 4389689 - Method and apparatus for mounting magnetic tape heads (1983-06-21),

2. 4337908 - Cartridge-loading apparatus for tape recorder drives (1982-07-06),

3. 4220931 - Composite video automatic gain control amplifier (1980-09-02),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#98 in Minnetonka, MN

#1,983 in Minnesota

#73,929 in US

Minnetonka, MN, United States of America

Northern Telecom Systems Corporation

Forward Citations = 19

3 inventors:

Dewey McKinley Sims, Jr (2 out of 52 patents)

William E Hines (1 out of 1 patent)

Verne L Severson (1 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Northern Telecom Systems Corporation. Retrieved from https://idiyas.com/company/northern-telecom-systems

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]