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. Plus Corporation (2 from 80 patents)
2 patents:
1. 6340237 - Lamp cartridge
2. 6129437 - Image display apparatus