Donald L. Casperson

📍 Escanaba, MI: #11 of 35 inventorsTop 35%

🗺 Michigan: #35,034 of 86,293 inventorsTop 45%

Overall (All Time): #2,284,515 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5388289	Combination wheelchair and lift	—	1995-02-14
4779654	Tree harvesting	Duane L. Scheuren	1988-10-25