Average Co-Inventor Count = 3.27
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. Fujicopian Co., Ltd. (3 from 99 patents)
3 patents:
1. 6500509 - Pressure sensitive transfer tape
2. 6235364 - Pressure-sensitive correction tape
3. 5700552 - Pressure-sensitive correction tape