DH

David A. Helmstetter

OL Olin: 4 patents #187 of 783Top 25%
Overall (All Time): #1,298,149 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5116594 Salt handling apparatus for a hypochlorous acid reactor Garland E. Hilliard, James K. Melton 1992-05-26
4966764 Process for producing low aluminum membrane cell feedbrine Emily J. Reed 1990-10-30
4830837 Process for removing aluminum from concentrated alkali metal halide brines David D. Justice, Emily J. Reed, Tsujihiko Fukunaga 1989-05-16
4431495 Location of a structurally damaged membrane David L. Fair, Kenneth E. Woodard, Jr. 1984-02-14