DS

David J. Speelman

PL Plasticolor: 1 patents #1 of 2Top 50%
📍 Ashtabula, OH: #3 of 11 inventorsTop 30%
🗺 Ohio: #715 of 3,574 inventorsTop 25%
Overall (1989): #121,633 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4839405 Ultraviolet stabilizer compositions, stabilized organic materials, and methods Allen J. Virant 1989-06-13