For the Inventor, By the Inventor

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Aurora, CO, United States of America

Xel Communications, Inc.

USPTO Granted Patents = 12

Forward Citations = 389

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12 inventors (with patents filed for the assignee):

Peter M Reum (5 out of 5 patents)

Terry D Bolinger (3 out of 3 patents)

David J Farrell (3 out of 5 patents)

4. Joseph Marcus Elder (2 out of 9 patents)

5. John A Neely (2 out of 2 patents)

6. Jimmy D Slife (2 out of 2 patents)

7. David Lee Holien (1 out of 5 patents)

8. Ninh T Nguyen (1 out of 1 patent)

9. Gaylord A Hart (1 out of 2 patents)

10. Kevin S Machemer (1 out of 1 patent)

11. Donald L Bise (1 out of 1 patent)

12. Peter Ruether (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 5606725 - Broadband network having an upstream power transmission level that is (1997-02-25),

2. 5513173 - Data link access unit for T1 spans supporting the extended superframe (1996-04-30),

3. 5488413 - CATV telephony system using subsplit band for both directions of (1996-01-30),

4. 5408524 - Answer supervision over pulse code modulated carrier system and method (1995-04-18),

5. 5301187 - System for implementing broadband audio program telephony circuits using (1994-04-05),

6. 5247574 - Adaptive no balance DX signalling circuit (1993-09-21),

7. 5197068 - Intra channel bank communication protocols between channels and the line (1993-03-23),

8. 5151935 - Programmable universal signaling circuit for a telephone network (1992-09-29),

9. 5140625 - System for testing 2B1Q telephony loopback circuits and method therefor (1992-08-18),

10. 5131033 - Sealing current generator for a telephone circuit (1992-07-14),

11. 5081670 - Smart data station termination (DST) without active equalizers (1992-01-14),

12. 5034978 - Universal channel unit switchable between two wire and four wire (1991-07-23),

Xel Communications, Inc. is a leading provider of communication solutions for businesses of all sizes. With a focus on innovation and customer service, we offer a wide range of services including VoIP, cloud hosting, and unified communications. Our team of experts is dedicated to helping our clients improve their communication strategies and streamline their operations. Visit our website to learn more about how Xel Communications can help your business thrive.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

12 Patents

#8 in Aurora, CO

#509 in Colorado

#24,779 in US

#46,665 in the World

Aurora, CO, United States of America

Xel Communications, Inc.

Forward Citations = 389

12 inventors:

Peter M Reum (5 out of 5 patents)

Terry D Bolinger (3 out of 3 patents)

David J Farrell (3 out of 5 patents)

4. Joseph Marcus Elder (2 out of 9 patents)

5. John A Neely (2 out of 2 patents)

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