Average Co-Inventor Count = 1.50
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. Ppg Industries, Inc. (3 from 2,825 patents)
3 patents:
1. D292643 - Yarn bobbin
2. 4596366 - Textile bobbin
3. D282312 - Yarn bobbin