Luther Bradford Barringer

EP Efficiency Production: 4 patents #1 of 4Top 25%

📍 Albemarle, NC: #14 of 79 inventorsTop 20%

🗺 North Carolina: #11,920 of 45,564 inventorsTop 30%

Overall (All Time): #1,284,508 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
D417764	Trench shield handling assembly	—	1999-12-14
5839707	Trench shield stacking device	—	1998-11-24
D399724	Trench shield stacking bracket	—	1998-10-20
5735642	Trench shield handling assembly	—	1998-04-07