Charles David Willis

HA Harbison-Fischer: 2 patents #5 of 17Top 30%

📍 Granbury, TX: #37 of 129 inventorsTop 30%

🗺 Texas: #52,441 of 125,132 inventorsTop 45%

Overall (All Time): #2,093,063 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
8215383	Stress and torque reducing tool	—	2012-07-10
7950449	Stress and torque reducing tool	—	2011-05-31