US

Underground Systems

Rank (All Time): #53911 of 106,127Top 55%
13 inventors
10
Patents All Time

Top Inventors at Underground Systems All Time

RankNamePatents
1 Paul A. Alex 6
2 Duncan Breese 5
3 John Engelhardt 5
#4 Larry Fish 5
#5 Charles J. Wills 2
#6 Chunchuan Xu 2
#7 James A. Bright 2
#8 Robert F. Smith 2
#9 Charles Lipsky 1
#10 David C. Bliven 1
#11 David W. Purnhagen 1
#12 John Mattis 1
#13 Steven S. Sunshine 1