MS

Mark W. Spencer

📍 Springboro, OH: #2 of 16 inventorsTop 15%
🗺 Ohio: #519 of 4,576 inventorsTop 15%
Overall (1997): #30,552 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5645229 Apparatus for and method of pulping waste paper Donald C. Cheesman 1997-07-08
5593098 Apparatus for and method of pulping waste paper Donald C. Cheesman 1997-01-14