Average Co-Inventor Count = 2.00
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. Matsushita Electric Corporation of America (2 from 139 patents)
2 patents:
1. 5917481 - Electronic television program guide with selective updating
2. 5699125 - Electronic television program guide for a television system having two