Ranking Year:
# | Company Name | Region | Tech Topics | Total |
---|
1 | Marine propulsion,National security,Aerospace | patent citation: 1,492 | ||
2 | ![]() | Heat exchanger,Heat transfer,Efficient energy use, ...[+2] | patent citation: 269 | |
3 | Automotive engineering | patent citation: 193 | ||
4 | patent citation: 137 | |||
5 | patent citation: 133 |