Average Co-Inventor Count = 4.00
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. Teikoku Seiyaku Co., Ltd. (2 from 95 patents)
2 patents:
1. 6299885 - External preparations containing watercress extract
2. 4900554 - Adhesive device for application to body tissue