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For the Inventor, By the Inventor

Pasadena, CA, United States of America

Gemstar Developement Corporation


USPTO Granted Patents = 70



Trademarks = 1

Forward Citations = 7,112

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30 inventors (with patents filed for the assignee):

goldMedal Henry C Yuen (45 out of 104 patents)

silverMedal Daniel S Kwoh (26 out of 62 patents)

bronzeMedal Roy J Mankovitz (16 out of 81 patents)

4.  Douglas B Macrae (9 out of 28 patents)

5.  Kenneth S Hancock (7 out of 18 patents)

6.  Thomas E Ward (7 out of 8 patents)

7.  Elsie Y Leung (5 out of 28 patents)

8.  Thomas E Westberg (2 out of 27 patents)

9.  Wing P Leung (2 out of 17 patents)

10.  Kwong Sang Sin (2 out of 2 patents)

11.  Philip W Chan (2 out of 2 patents)

12.  Michael R Levine (2 out of 60 patents)

13.  Scott E Stropkay (1 out of 64 patents)

14.  Jonathan B Orlick (1 out of 8 patents)

15.  Ronald Alexander (1 out of 5 patents)


Core Competencies:
Electronic Program Guide
Parental Control
Targeted Advertisement
Television Program Scheduling
Video Search Engine
Compressed Codes
Simulated PIP Window
Digital Rights Management
Television Calendar
Remote Control Technology
Broadcast Recording Control
Customized Television Programming

70 patents:

1. 8918807 - System and method for modifying advertisement responsive to EPG information (2014-12-23),
2. 8761584 - System and method for searching a database of television schedule information (2014-06-24),
3. 8739216 - Simulated PIP window in EPG (2014-05-27),
4. 8732757 - System and method for targeted advertisement display responsive to user characteristics (2014-05-20),
5. 8726311 - System and method for modifying advertisement responsive to EPG information (2014-05-13),
6. 8635649 - System and method for modifying advertisement responsive to EPG information (2014-01-21),
7. 8635642 - Apparatus and method for parental control using V-Chip plus+ and master password (2014-01-21),
8. 8448209 - System and method for displaying advertisements responsive to EPG information (2013-05-21),
9. 8341137 - Search engine for video and graphics (2012-12-25),
10. 8341136 - Search engine for video and graphics (2012-12-25),
11. 8336071 - System and method for modifying advertisement responsive to EPG information (2012-12-18),
12. 8196167 - Simulated PIP window in EPG (2012-06-05),
13. 8006260 - Apparatus and method for parental control using V-chip plus+ and master password (2011-08-23),
14. 7996864 - Method and apparatus for displaying television programs and related text (2011-08-09),
15. 7987175 - Search engine for video and graphics (2011-07-26),
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USPTO Data Jan 1 1976 - Jan 13 2026

70 Patents

#5 in Pasadena, CA

#1,205 in California

#5,065 in US

#10,361 in the World

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Pasadena, CA, United States of America

Gemstar Developement Corporation

Forward Citations = 7,112

30 inventors:

goldMedal Henry C Yuen (45 out of 104 patents)

silverMedal Daniel S Kwoh (26 out of 62 patents)

bronzeMedal Roy J Mankovitz (16 out of 81 patents)

4.  Douglas B Macrae (9 out of 28 patents)

5.  Kenneth S Hancock (7 out of 18 patents)

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