Average Co-Inventor Count = 1.71
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. Tamrock Oy (3 from 37 patents)
3 patents:
1. 6012707 - Arrangement for controlling tension in a winch cable connected to rock
2. 5806616 - Arrangement in a rock drilling equipment
3. 5409072 - Method and an arrangement for controlling the supply of air into a rock