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For the Inventor, By the Inventor

Lexington, MA, United States of America

Ibasis, Inc.


USPTO Granted Patents = 33

% Expired Patents = 12.1


Trademarks = 7

Forward Citations = 256

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17 inventors (with patents filed for the assignee):

goldMedal Richard H Xu (13 out of 13 patents)

silverMedal Hwan Jang Tang (11 out of 12 patents)

bronzeMedal Vitaliy G Yurchenko (8 out of 8 patents)

4.  Ajay Joseph (8 out of 9 patents)

5.  Manpreet Singh (5 out of 5 patents)

6.  Shuping Zhang (4 out of 4 patents)

7.  Lizhong Zhang (4 out of 5 patents)

8.  Paul Andrew Skelly (4 out of 8 patents)

9.  Richard M Pellegrini (2 out of 2 patents)

10.  Hwanjang Tang (2 out of 2 patents)

11.  Sander De Kievit (1 out of 20 patents)

12.  Ewout Leonard Pronk (1 out of 2 patents)

13.  Yixin Fan (1 out of 1 patent)

14.  James W Lotti (1 out of 1 patent)

15.  Mauro Mattos Silva Araujo (1 out of 1 patent)


Core Competencies:
IPX Signaling Security
Data Access Security
Voice Over LTE
Policy Control Framework
eSIM Profile Switching
Fraud Detection
Roaming Management
Teleconferencing
Codec Selection
Call Routing
Internet Of Things
VoIP Calling

33 patents:

1. 11438310 - IPX signaling security (2022-09-06),
2. 11284459 - Data access security (2022-03-22),
3. 10979890 - Policy control framework (2021-04-13),
4. 10979462 - Identifying voice over LTE users (2021-04-13),
5. 10917782 - Internet of things services architecture (2021-02-09),
6. 10911932 - Method and system for hub breakout roaming (2021-02-02),
7. 10820190 - eSIM profile switching without SMS (2020-10-27),
8. 10524116 - Internet of things services architecture (2019-12-31),
9. 10470031 - Voice over IMS roaming gateway (2019-11-05),
10. 10291661 - Method and system for call routing (2019-05-14),
11. 10263903 - Method and apparatus for managing communication flow in an inter-network system (2019-04-16),
12. 10057429 - Pre-paid voice calling using sponsored data roaming (2018-08-21),
13. 9961209 - Codec selection optimization (2018-05-01),
14. 9942780 - Automated action based on roaming satisfaction indicator (2018-04-10),
15. 9788188 - Method and system for hub breakout roaming (2017-10-10),
Company Overview
iBasis, Inc. is a prominent provider of communications solutions, specializing in voice and data services for telecommunications operators and enterprises. The company focuses on enhancing global connectivity through innovative technologies, including VoIP and mobile services, catering to a diverse range of clients. Headquartered in Lexington, Massachusetts, iBasis leverages its extensive network and expertise to deliver reliable and scalable solutions that meet the evolving needs of the digital communication landscape.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Ibasis, Inc. USPTO Patent Assignee Logo
33 Patents

#27 in Lexington, MA

#618 in Massachusetts

#10,305 in US

#20,147 in the World

Lexington, MA (US)
Lexington, MA, United States of America

Ibasis, Inc.

Forward Citations = 256

17 inventors:

goldMedal Richard H Xu (13 out of 13 patents)

silverMedal Hwan Jang Tang (11 out of 12 patents)

bronzeMedal Vitaliy G Yurchenko (8 out of 8 patents)

4.  Ajay Joseph (8 out of 9 patents)

5.  Manpreet Singh (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ibasis, Inc.. Retrieved from https://idiyas.com/company/ibasis

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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