DH

David P. Haack

PP Porvair, Plc: 3 patents #2 of 19Top 15%
BT Breed Automotive Technology: 1 patents #179 of 359Top 50%
📍 Madison, WI: #1,182 of 4,527 inventorsTop 30%
🗺 Wisconsin: #10,776 of 40,088 inventorsTop 30%
Overall (All Time): #1,228,373 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8518528 Low expansion corrosion resistant ceramic foam filters for molten aluminum filtration Feng Chi, Leonard S. Aubrey 2013-08-27
7718114 Ceramic foam filter for better filtration of molten iron Rudolph A. Olson, III, Leonard S. Aubrey, Feng Chi, Christopher J. Plantec, Myron K. Redden 2010-05-18
6706239 Method of co-forming metal foam articles and the articles formed by the method thereof Chi-Li Lin, Michael Allen Speckert 2004-03-16
6018130 Roll-over sensor with pendulum mounted magnet Brad Benson, Daniel R. Reneau 2000-01-25