CD

Charles D. Dern

SI Sp Industries: 2 patents #1 of 1Top 100%
📍 Doylestown, PA: #15 of 106 inventorsTop 15%
🗺 Pennsylvania: #1,116 of 7,685 inventorsTop 15%
Overall (2021): #174,004 of 548,734Top 35%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11181320 Energy recovery in a freeze-drying system — 2021-11-23
10976104 Means and methods for selective shelf temperature control — 2021-04-13