FJ

Frank E. Vanderwal, Jr.

SP Sunnen Products: 9 patents #2 of 38Top 6%
📍 Chesterfield, MO: #689 of 6,461 inventorsTop 15%
🗺 Missouri: #2,345 of 23,789 inventorsTop 10%
Overall (All Time): #591,833 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5243792 Scroll feed honing head 1993-09-14
5185969 Positive retracting honing mandrel 1993-02-16
4886157 Workpiece delivery magazine Robert M. Sunnen, Richard Jackson 1989-12-12
4827674 Workpiece gripper and support Robert M. Sunnen 1989-05-09
4512116 Feed-up means for expandable work engaging members James K. Davis 1985-04-23
4397658 Feed control means for honing and like machines 1983-08-09
4227310 Heads for gaging devices and fixture for setting same 1980-10-14
4226400 Guide means for honing and like machines 1980-10-07
4192073 Process gaging apparatus 1980-03-11