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Hong Kong, China

Vtech Communications Limited

USPTO Granted Patents = 64

% Expired Patents = 6.3

CIPO Patents = 5

Trademarks = 18

Forward Citations = 1,005

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57 inventors (with patents filed for the assignee):

Wong F Shan (7 out of 7 patents)

Pang C Kong (7 out of 7 patents)

Joseph Chan (6 out of 6 patents)

4. Ho C Wah (6 out of 6 patents)

5. Milosh Koprivica (4 out of 10 patents)

6. Sarkis Teghararian (4 out of 4 patents)

7. Ralph Tischler (4 out of 15 patents)

8. Chris J Goodings (4 out of 5 patents)

9. Dion Michael Horvat (4 out of 4 patents)

10. Stephen Paul Hughes (4 out of 7 patents)

11. Sukhdeep Singh Hundal (3 out of 50 patents)

12. Nicholas James Mival (3 out of 6 patents)

13. Michael William Dormer (3 out of 6 patents)

14. Dion Calvin Michael Horvat (3 out of 3 patents)

15. Florin Gheorghe Jelea (3 out of 3 patents)

Core Competencies:

Caller ID Adjustment

Interference Avoidance

Digital Audio Transmission

Wireless Transceiver

Frequency Hopping

Cordless Telephone

Data Framing Format

Error Detection

Phase-Locked Loop

Tactile Feedback

Backup Battery

Video Signal Scrambling

64 patents: Sort by Forward Citations

1. 8531998 - Communications apparatus and method to avoid interference (2013-09-10),

2. 8213595 - System and method to adjust caller ID information (2012-07-03),

3. 7990933 - Method for avoiding interference in a digital communication system (2011-08-02),

4. 7266141 - Hybrid frame structure for wireless communications (2007-09-04),

5. 7136929 - Broadcast in a wireless communications system (2006-11-14),

6. 7120190 - Low power RC clocking system for wireless communications (2006-10-10),

7. 7103030 - Adaptive frequency hopping strategy (2006-09-05),

8. 7027424 - Method for avoiding interference in a digital communication system (2006-04-11),

9. 7020119 - Method and apparatus for digital audio transmission (2006-03-28),

10. 6944284 - Pulsed volume control of a magnetic ringer (2005-09-13),

11. 6914968 - Method and apparatus for telephone call fraud detection and prevention (2005-07-05),

12. 6914946 - Digitally-implemented demodulator (2005-07-05),

13. 6912260 - System clock synchronization using phase-locked loop (2005-06-28),

14. 6856817 - Cordless telephone headset with dialcard display (2005-02-15),

15. 6839051 - Two-axis cursor control apparatus (2005-01-04),

Vtech Communications Limited, headquartered in Hong Kong, specializes in wireless communications technology. The company is known for its innovative developments in cordless telephony, focusing on features such as caller ID adjustment, interference avoidance, and digital audio transmission. Vtech's expertise extends to wireless transceivers and frequency hopping techniques, enhancing the reliability and quality of communication devices. With a commitment to advancing data framing formats and error detection, Vtech plays a significant role in shaping modern communication solutions.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Vtech Communications Limited

64 Patents

#46 in Hong Kong

#503 in China

#11,463 in the World

Hong Kong, China

Vtech Communications Limited

Forward Citations = 1,005

57 inventors:

Wong F Shan (7 out of 7 patents)

Pang C Kong (7 out of 7 patents)

Joseph Chan (6 out of 6 patents)

4. Ho C Wah (6 out of 6 patents)

5. Milosh Koprivica (4 out of 10 patents)

Please report any incorrect information to [email protected]

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