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. Rautaruukki Oy (1 from 15 patents)
2. Rannila Steel Oy (1 from 1 patent)
2 patents:
1. 5586418 - Composite construction of reinforced concrete
2. 5566522 - Ribbed plate for a composite slab