DJ

David A. Johnson

BR Bristol-Meyers: 4 patents #2 of 56Top 4%
AI Akzona Incorporated: 1 patents #19 of 88Top 25%
📍 Hamilton, MT: #1 of 1 inventorsTop 100%
🗺 Montana: #1 of 53 inventorsTop 2%
Overall (1982): #1,313 of 81,411Top 2%
5
Patents 1982

Issued Patents 1982

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4351766 Production of penicillins Derek Walker, Herbert H. Silvestri, Chester Sapino 1982-09-28
4322522 Polyester/polyether segmented copolymers stabilized against degradation by UV light via copolymerization with analogs of 2,2,6,6-tetramethylpiperidine derivatives Robert L. Gilly, Kenneth B. Wagener 1982-03-30
4316016 Cephalosporin intermediates Derek Walker, Herbert H. Silvestri, Chester Sapino 1982-02-16
4316017 Cephalosporin intermediates Derek Walker, Herbert H. Silvestri, Chester Sapino 1982-02-16
4310458 Production of penicillins Derek Walker, Herbert H. Silvestri, Chester Sapino 1982-01-12