Dale N. Skillman

📍 Rapid City, SD: #71 of 295 inventorsTop 25%

🗺 South Dakota: #511 of 2,308 inventorsTop 25%

Overall (All Time): #1,608,895 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6533033	Pump protection system	—	2003-03-18
4390010	Solar energy collecting apparatus and roll-formed metal building	—	1983-06-28
4308858	Solar energy collecting apparatus and methods	—	1982-01-05