HP

Henri G. W. Pierson

DC Dc Co.: 12 patents #1 of 6Top 20%
📍 Wellingborough, GB: #1 of 53 inventorsTop 2%
Overall (All Time): #280,324 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
6036859 Filter press apparatus 2000-03-14
5965020 Endless belt filter 1999-10-12
5482623 Filter press apparatus 1996-01-09
5482627 Separation method 1996-01-09
5368732 Horizontal belt filter 1994-11-29
5366626 Filter apparatus 1994-11-22
5130021 Filtration apparatus 1992-07-14
5086963 Web guidance and tracking mechanism for a continuous belt filter 1992-02-11
5019258 Horizontal belt vacuum filtration apparatus 1991-05-28
4979315 Filtration apparatus with integral drying by electromagnetic radiation 1990-12-25
4857194 Intermittent vacuum filter apparatus incorporating a double valve arrangement 1989-08-15
4708798 Endless belt batch filtration apparatus 1987-11-24
4495070 Horizontal vacuum belt filter 1985-01-22
4472279 Endless belt filter with stationary guide bars 1984-09-18
4446023 Vacuum belt filter 1984-05-01
4377479 Vacuum belt filter 1983-03-22
4377480 Vacuum belt filter 1983-03-22