DH

Donald D. Helman

📍 Buena Park, CA: #4 of 11 inventorsTop 40%
🗺 California: #1,105 of 6,198 inventorsTop 20%
Overall (1982): #68,811 of 81,411Top 85%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4330572 Method for repair of thin glass coatings Robert A. Administrator of the National Aeronautics and Space Frosch, Jack W. Holt, Laurence W. Smiser 1982-05-18