Average Co-Inventor Count = 1.83
ph-index = 48
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Gemstar Developement Corporation (45 from 70 patents)
2. Index Systems, Inc. (31 from 58 patents)
3. Other (11 from 832,680 patents)
4. E Guide, Inc. (9 from 17 patents)
5. Rovi Guides, Inc. (5 from 2,118 patents)
6. United Video Properties, Inc. (1 from 320 patents)
7. Gemstar Ebook Group Limited (1 from 1 patent)
8. Index System, Inc. (1 from 1 patent)
9. Yuen, Henry C. (0 patent)
10. Kwoh, Daniel S. (0 patent)
11. Henry C. Yuen (0 patent)
12. Daniel S. Kwoh (0 patent)
104 patents:
1. 9811538 - Search engine for video and graphics
2. 9392332 - Apparatus and method for parental control using V-Chip plus+ and master password
3. 9311405 - Search engine for video and graphics
4. 9191722 - System and method for modifying advertisement responsive to EPG information
5. 9055341 - Combination of recorded program index and EPG
6. 9015749 - System and method for modifying advertisement responsive to EPG information
7. 8918807 - System and method for modifying advertisement responsive to EPG information
8. 8914828 - System and method for grazing television channels from an electronic program guide
9. 8739216 - Simulated PIP window in EPG
10. 8689259 - Home entertainment system and method of its operation
11. 8635642 - Apparatus and method for parental control using V-Chip plus+ and master password
12. 8631434 - Method and apparatus for transmitting and downloading setup information
13. 8341137 - Search engine for video and graphics
14. 8341136 - Search engine for video and graphics
15. 8296807 - Method and apparatus for transmitting and downloading setup information