For the Inventor, By the Inventor

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Waseca, MN, United States of America

E.f. Johnson Company

Calculating rank

USPTO Granted Patents = 85

CIPO Patents = 1

Trademarks = 13

Forward Citations = 1,401

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60 inventors (with patents filed for the assignee):

Arindam Roy (27 out of 30 patents)

Donald R Bauman (8 out of 29 patents)

Keith W Barnes (8 out of 68 patents)

4. Marshall Jobe (7 out of 8 patents)

5. Jeffery E Benshetler (7 out of 8 patents)

6. Philip A Keefer (7 out of 7 patents)

7. Troy V Frandsen (7 out of 7 patents)

8. Larry Emmett (6 out of 6 patents)

9. Dulie Reavill (6 out of 6 patents)

10. Michael E Mihelich (6 out of 6 patents)

11. Howard N Brace (6 out of 18 patents)

12. William Earl Dunnigan (5 out of 6 patents)

13. Jerry J Conley (5 out of 6 patents)

14. Linda M Trine (5 out of 9 patents)

15. Chander M Wahi (5 out of 6 patents)

Core Competencies:

Land Mobile Radio

Distributed Architecture

Channel Allocation

Interoperability Gateway

Dispatch Console

Volume Control

Hybrid Systems

Encryption Methods

Two-Way Radio

Communication Protocols

Remote Repeater

Network Switch

85 patents: Sort by Forward Citations

1. 12316437 - Distributed land mobile radio architectures (2025-05-27),

2. 11936466 - Distributed land mobile radio architectures (2024-03-19),

3. 11496212 - Distributed simulcast architecture (2022-11-08),

4. 11445336 - Land mobile radio dispatch console (2022-09-13),

5. 11374546 - Automatic volume control for land mobile radio (2022-06-28),

6. 10880000 - Distributed simulcast architecture (2020-12-29),

7. 10791566 - System and method for dynamic channel allocation (2020-09-29),

8. 10749737 - Interoperability gateway for land mobile radio system (2020-08-18),

9. 10643540 - Control head with electroluminescent panel in land mobile radio (2020-05-05),

10. 10559259 - Control head with electroluminescent panel in land mobile radio (2020-02-11),

11. 10548108 - System and method for providing mobility management and out-of-coverage indication in a conventional land mobile radio system (2020-01-28),

12. 10548025 - System and method for simulating a land mobile radio system (2020-01-28),

13. 10492036 - Land mobile radio dispatch console (2019-11-26),

14. 10469047 - Automatic volume control for land mobile radio (2019-11-05),

15. 10461846 - Distributed simulcast architecture (2019-10-29),

Company Overview

E.F. Johnson Company, based in Waseca, MN, specializes in land mobile radio communications, providing advanced solutions for public safety and commercial sectors. The company focuses on developing technologies that enhance communication reliability and interoperability, including distributed architecture and encryption methods. Their product offerings encompass dispatch consoles, hybrid systems, and channel allocation solutions, ensuring efficient and secure communication for users in critical situations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

85 Patents

#1 in Waseca, MN

#120 in Minnesota

#4,384 in US

#8,965 in the World

Waseca, MN, United States of America

E.f. Johnson Company

Forward Citations = 1,401

60 inventors:

Arindam Roy (27 out of 30 patents)

Donald R Bauman (8 out of 29 patents)

Keith W Barnes (8 out of 68 patents)

4. Marshall Jobe (7 out of 8 patents)

5. Jeffery E Benshetler (7 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: E.f. Johnson Company. Retrieved from https://idiyas.com/company/e-f-johnson-company

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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