Average Co-Inventor Count = 2.00
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. F. L. Smidth & Co., A/s (2 from 78 patents)
2 patents:
1. 5788480 - Grate element
2. 5713345 - Grate element