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For the Inventor, By the Inventor

Cedar Rapids, IA, United States of America

Link USA Corp.


USPTO Granted Patents = 16

Forward Citations = 1,334

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13 inventors (with patents filed for the assignee):

goldMedal Steven J Hogan (16 out of 22 patents)

silverMedal Kristi T Feltz (16 out of 22 patents)

bronzeMedal Douglas R Murdock (16 out of 22 patents)

4.  David J Vercande (9 out of 12 patents)

5.  Eric M Busch (9 out of 14 patents)

6.  Keith E Smith (9 out of 19 patents)

7.  Todd A Goodman (7 out of 10 patents)

8.  Michael R Tangeman (7 out of 10 patents)

9.  Raghavan Kripakaran (5 out of 8 patents)

10.  Madhigubba G Jayasimha (5 out of 8 patents)

11.  Mark A Austin (5 out of 9 patents)

12.  Dana Bruce Berry (5 out of 8 patents)

13.  Roy A Rhodes (2 out of 2 patents)


16 patents:

1. 6263372 - Method and apparatus for interfacing two or more applications in a client server (2001-07-17),
2. 6016343 - Call-processing system and method (2000-01-18),
3. 5903637 - System and method for call conferencing (1999-05-11),
4. 5873099 - System and method for maintaining redundant databases (1999-02-16),
5. 5867566 - Real-time billing system for a call processing system (1999-02-02),
6. 5854833 - Processing using DEF records (1998-12-29),
7. 5799156 - System for determining an alternative application to receive message (1998-08-25),
8. 5646982 - System and method for message delivery (1997-07-08),
9. 5638430 - Call validation system (1997-06-10),
10. 5633919 - Real-time billing system for a call processing system (1997-05-27),
11. 5619554 - Distributed voice system and method (1997-04-08),
12. 5615251 - Real-time reconfiguration (1997-03-25),
13. 5590181 - Call-processing system and method (1996-12-31),
14. 5586175 - Call-processing system and method (1996-12-17),
15. 5546449 - System and method for call conferencing (1996-08-13),
Company Overview
Link USA Corp., based in Cedar Rapids, Iowa, specializes in advanced telecommunications solutions and infrastructure development. The company focuses on enhancing connectivity through innovative technologies, providing services that cater to both commercial and residential sectors. With a commitment to quality and reliability, Link USA Corp. plays a significant role in the telecommunications landscape, contributing to the evolution of communication networks and systems across the United States.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#8 in Cedar Rapids, IA

#113 in Iowa

#19,907 in US

#37,788 in the World

Cedar Rapids, IA (US)
Cedar Rapids, IA, United States of America

Link USA Corp.

Forward Citations = 1,334

13 inventors:

goldMedal Steven J Hogan (16 out of 22 patents)

silverMedal Kristi T Feltz (16 out of 22 patents)

bronzeMedal Douglas R Murdock (16 out of 22 patents)

4.  David J Vercande (9 out of 12 patents)

5.  Eric M Busch (9 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Link USA Corp.. Retrieved from https://idiyas.com/company/link-usa

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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