Donald A. Markham

📍 Salt Lake City, UT: #1,905 of 4,590 inventorsTop 45%

🗺 Utah: #7,921 of 19,430 inventorsTop 45%

Overall (All Time): #2,221,078 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6499435	Portable corral	—	2002-12-31
4264081	Fireplace implement by which firewood is hauled to and stored juxtaposed the fireplace	—	1981-04-28