Average Co-Inventor Count = 3.75
ph-index = 2
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. Rovi Guides, Inc. (2 from 2,118 patents)
2. Index Systems, Inc. (2 from 58 patents)
3. Gemstar Developement Corporation (1 from 70 patents)
4. E Guide, Inc. (17 patents)
5 patents:
1. 9191722 - System and method for modifying advertisement responsive to EPG information
2. 9015749 - System and method for modifying advertisement responsive to EPG information
3. 8918807 - System and method for modifying advertisement responsive to EPG information
4. 8156529 - System and method for preprogrammed purchasing of television offered products
5. 6177931 - Systems and methods for displaying and recording control interface with television programs, video, advertising information and program scheduling information