DV

Dennis B. Vanderheiden

Pfizer: 2 patents #2,078 of 5,153Top 45%
📍 Easton, PA: #257 of 611 inventorsTop 45%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,345,842 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4714603 Spherically shaped precipitated calcium carbonate, its preparation and use — 1987-12-22
4367207 Process for the preparation of finely divided precipitated calcium carbonate — 1983-01-04