Average Co-Inventor Count = 2.67
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. Seiko Clock Inc. (4 from 29 patents)
4 patents:
1. 9280142 - Radio clock
2. 9244435 - Timepiece having a wide variety of appearances
3. 9217993 - Timepiece with a wide variety of appearances
4. 9069334 - Radio clock