Robert W. Engel

📍 Toledo, OH: #9 of 117 inventorsTop 8%

🗺 Ohio: #519 of 4,576 inventorsTop 15%

Overall (1997): #26,083 of 185,788Top 15%

Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5679047	Vibratory toy and game apparatus	—	1997-10-21
5672057	Spin art device having inflatable components	—	1997-09-30