DR

David W. Rice

UN Unknown: 2 patents #37 of 1,640Top 3%
📍 Cincinnati, OH: #30 of 417 inventorsTop 8%
🗺 Ohio: #248 of 3,574 inventorsTop 7%
Overall (1989): #29,362 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4822033 Baby swing support assembly Louis M. Kohus, John V. Mariol 1989-04-18
4818016 Hook-on type baby chair John V. Mariol 1989-04-04