Raymond L. Graf

SPS & M Precast: 2 patents #1 of 1Top 100%

Henryville, IN: #1 of 2 inventorsTop 50%

Indiana: #294 of 3,792 inventorsTop 8%

Overall (2021): #66,657 of 548,734Top 15%

3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
11208816	Flow channel form design for manhole assemblies	—	2021-12-28
11174455	Barrel apparatus	—	2021-11-16
10941557	Water quality unit for flow-through manhole	—	2021-03-09