Average Co-Inventor Count = 2.90
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 (2 from 1,384 patents)
2. Ykk Europe Limited (1 from 6 patents)
3 patents:
1. 8756768 - Waterproof slide fastener
2. 8402613 - Slide fastener
3. 7073233 - Slide fastener