DH

Donald K. Howard

CI Ciba-Geigy: 1 patents #1,572 of 2,867Top 55%
Overall (All Time): #4,026,363 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4559214 Particulate calcium carbonate Michael A. Finan, Michael J. Lees 1985-12-17