DH

David M. Higgins

UF United States Filter: 2 patents #21 of 137Top 20%
JW Jwi: 1 patents #29 of 59Top 50%
📍 Holland, MI: #446 of 1,299 inventorsTop 35%
🗺 Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,620,315 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6180002 Filter press with alternating diaphragm squeeze chamber plates and filtration chamber plates 2001-01-30
6132176 Flow control sensor and method for filling of a filter press 2000-10-17
5674384 Filter press with weight-responsive bumping of filter plates 1997-10-07