JR

John O. Ratka

BU British Technology Group Usa: 1 patents #1 of 13Top 8%
PU Princeton University: 1 patents #2 of 14Top 15%
📍 Cleveland Heights, OH: #10 of 40 inventorsTop 25%
🗺 Ohio: #979 of 4,093 inventorsTop 25%
Overall (1994): #112,043 of 165,921Top 70%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5324914 Method and apparatus for welding precipitation hardenable materials Holt A. Murray, Jr., Ian D. Harris, William D. Spiegelberg 1994-06-28