Average Co-Inventor Count = 1.33
ph-index = 1
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. Seikosha Co., Ltd. (2 from 696 patents)
2 patents:
1. D346970 - Clock
2. D346966 - Clock with picture frame