Inventor

WIERSMA ROGER E

US2 patents

⚠️ This page may combine multiple inventors who share the name “WIERSMA ROGER E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GRACO MINNESOTA INC

1 patent

USD457599SMay 21, 2002

Electrostatic spray gun

GRACO MINNESOTA INC83 citations95

WIERSMA ROGER E

1 patent

US11566932B2Jan 31, 2023

Sonic monitor system for a tank

WIERSMA ROGER E1 citations47