Richard L. Howell, Jr.

📍 Garden Grove, CA: #119 of 564 inventorsTop 25%

🗺 California: #124,610 of 386,348 inventorsTop 35%

Overall (All Time): #1,241,148 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
7640998	Excavation apparatus	—	2010-01-05
6725946	Excavation apparatus	—	2004-04-27
5746277	Drilling apparatus	—	1998-05-05
4877091	Augering apparatus and drilling rig	—	1989-10-31