DW

David C. Weigel

3M: 2 patents #84 of 952Top 9%
📍 White Bear Lake, MN: #2 of 56 inventorsTop 4%
🗺 Minnesota: #240 of 2,841 inventorsTop 9%
Overall (1994): #35,637 of 165,921Top 25%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5278024 Positive imaging diffusion-transfer dry silver system using formazan dye Richard C. Cotner, Kumars Sakizadeh 1994-01-11
5275932 Thermal development accelerators for thermographic materials Oanh V. Pham 1994-01-04