RG

Roger H. Grothaus

SS S. C. Johnson & Son: 2 patents #682 of 1,588Top 45%
📍 Racine, WI: #460 of 1,018 inventorsTop 50%
🗺 Wisconsin: #17,084 of 40,088 inventorsTop 45%
Overall (All Time): #2,344,454 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4696126 Method of trapping flying insects Donald W. Hildebrandt 1987-09-29
4689915 Trap for houseflies Donald W. Hildebrandt 1987-09-01