Average Co-Inventor Count = 2.57
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. Ykk Corporation (3 from 1,442 patents)
3 patents:
1. D720254 - Pull tab of slider for slide fastener
2. D691918 - Slider for zip fastener
3. D691512 - Slider for zip fastener