For the Inventor, By the Inventor

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San Jose, CA, United States of America

Altigen Communications, Inc.

Calculating rank

USPTO Granted Patents = 18

% Expired Patents = 5.6

Trademarks = 6

Forward Citations = 272

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18 inventors (with patents filed for the assignee):

Shirley T Sun (8 out of 8 patents)

Gilbert Hu (7 out of 8 patents)

Donggun Keung (4 out of 10 patents)

4. Leo Liu (4 out of 4 patents)

5. En-Kuang Lung (4 out of 4 patents)

6. Jeremiah J Fleming (3 out of 3 patents)

7. Jimmin Yao (3 out of 3 patents)

8. Nathaniel P Levonius (3 out of 3 patents)

9. Hakim Mesiwala (2 out of 5 patents)

10. Chiaming Jen (2 out of 2 patents)

11. Tzerng-Hong Lin (2 out of 3 patents)

12. Yi Zhang (2 out of 114 patents)

13. Chien-Sheng Wu (1 out of 1 patent)

14. Simon Chouldjian (1 out of 1 patent)

15. Joseph Chiu (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 8660605 - Mobile communications device interface device and method (2014-02-25),

2. D638818 - Docking station with handset for smartphone (2011-05-31),

3. D638817 - Docking station for cellular telephone (2011-05-31),

4. 7308092 - Method for connecting calls directed to a PSTN extension to a handset of a packet switched network (2007-12-11),

5. 7280649 - Personal auto attendant apparatus and method (2007-10-09),

6. 7058047 - Network call-back data capture method and apparatus (2006-06-06),

7. 7013007 - Computer telephony power supply method and apparatus (2006-03-14),

8. 6956848 - Computer network-based auto-attendant method and apparatus (2005-10-18),

9. 6928078 - Packetized communications apparatus and method (2005-08-09),

10. 6909780 - Voice mail call out method and apparatus (2005-06-21),

11. 6909709 - Packetized communications apparatus and method (2005-06-21),

12. 6766006 - Personal auto attendant apparatus and method (2004-07-20),

13. 6754202 - Network call-back data capture method and apparatus (2004-06-22),

14. 6738465 - Call-back number voice capture method and apparatus (2004-05-18),

15. 6532230 - Mixed-media communication apparatus and method (2003-03-11),

Company Overview

Altigen Communications, Inc. is a technology company based in San Jose, California, specializing in cloud-based communication solutions. The company focuses on developing innovative software that enhances customer engagement and streamlines business operations through advanced voice and data integration. Altigen's offerings include unified communications, contact center solutions, and collaboration tools, catering to a diverse range of industries seeking to improve their communication infrastructure and operational efficiency.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 10 2026

18 Patents

#368 in San Jose, CA

#4,303 in California

#18,004 in US

#34,321 in the World

San Jose, CA, United States of America

Altigen Communications, Inc.

Forward Citations = 272

18 inventors:

Shirley T Sun (8 out of 8 patents)

Gilbert Hu (7 out of 8 patents)

Donggun Keung (4 out of 10 patents)

4. Leo Liu (4 out of 4 patents)

5. En-Kuang Lung (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Altigen Communications, Inc.. Retrieved from https://idiyas.com/company/altigen-communications

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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