Average Co-Inventor Count = 3.00
ph-index = 3
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. Seiko Epson Corporation (3 from 33,404 patents)
3 patents:
1. 6108060 - Surface-type illumination device and liquid crystal display
2. 5949505 - Surface-type illumination device and liquid crystal display
3. 5619351 - Surface-type illumination device and liquid crystal display