DS

David J. Shannon

PW Pure Water: 5 patents #2 of 15Top 15%
II Isco International: 1 patents #38 of 51Top 75%
📍 Lincoln, NE: #210 of 1,303 inventorsTop 20%
🗺 Nebraska: #754 of 5,697 inventorsTop 15%
Overall (All Time): #886,921 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5981289 Hydrogen sulfide analyzer Paul George Wright, Lowell Robert Nickolaus, Randy J. Forman, Clifford LaRue McDonald, Jr., Bennett K. Horenstein 1999-11-09
D314225 Water distillation unit David G. Palmer 1991-01-29
4975154 Water purification method and apparatus with conductivity sensing controls David G. Palmer, Keith Vacha 1990-12-04
4943353 Control for modular water distiller 1990-07-24
D306338 Water distillation unit Dale A. Rempe, Keith Vacha 1990-02-27
4888097 Water purification method and apparatus David G. Palmer, Keith Vacha 1989-12-19