Ranking Year:
# | Company Name | Region | Tech Topics | Total |
|---|
1 |  | Surface mining,Drill bit,Truck, ...[+1] | Avg patent value: 1.60 M | |
2 | | Petroleum industry | Avg patent value: 1.43 M | |
3 | | Excavation,Mechanical engineering,Manufacturing engineering | Avg patent value: 1.01 M | |
4 | | Avg patent value: 752,892 | ||
5 |  | Petroleum industry,Natural resource management | Avg patent value: 268,977 |