Mark Powell

📍 Grand Haven, MI: #6 of 20 inventorsTop 30%

🗺 Michigan: #694 of 3,452 inventorsTop 25%

Overall (1989): #79,295 of 140,708Top 60%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4887549	Dog training apparatus	—	1989-12-19