Richard D. Michael

📍 Baltimore, MD: #22 of 133 inventorsTop 20%

🗺 Maryland: #225 of 1,164 inventorsTop 20%

Overall (1989): #65,550 of 140,708Top 50%

Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4862830	Self-cleaning cat pan device	—	1989-09-05