DW

Douglas M. Wallace

EO Evac International Oy: 12 patents #3 of 35Top 9%
📍 Roscoe, IL: #25 of 231 inventorsTop 15%
🗺 Illinois: #7,280 of 84,256 inventorsTop 9%
Overall (All Time): #426,846 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
6732386 Rinse fluid valve for a vacuum toilet William Bruce Anderson, Jay D. Stradinger, Mark A. Pondelick, Michael B. Hancock, Arthur J. McGowan, Jr. +1 more 2004-05-11
6704947 Discharge valve for a vacuum toilet Jay D. Stradinger, William Bruce Anderson, Mark A. Pondelick, Michael B. Hancock, Arthur J. McGowan, Jr. +1 more 2004-03-16
6536055 Modular vacuum toilet with line replaceable units Mark A. Pondelick, Jay D. Stradinger, William Bruce Anderson, Arthur J. McGowan, Jr., Ian Tinkler +1 more 2003-03-25
6536054 Vacuum toilet bowl assembly having removable bowl William Bruce Anderson, Mark A. Pondelick, Jay D. Stradinger, Arthur J. McGowan, Jr., Michael B. Hancock +1 more 2003-03-25
6467497 Buffer box for use in a vacuum drainage system Jay D. Stradinger, Michael B. Hancock 2002-10-22
6370709 Discharge valve having a disk with a flushing aperture and an air intake aperture for a vacuum toilet Jay D. Stradinger, William Bruce Anderson, Mark A. Pondelick, Michael B. Hancock, Arthur J. McGowan, Jr. +1 more 2002-04-16
6353942 Modular vacuum toilet with line replaceable units Mark A. Pondelick, Jay D. Stradinger, William Bruce Anderson, Arthur J. McGowan, Jr., Ian Tinkler +1 more 2002-03-12
6349425 Valve set for a vacuum toilet Jay D. Stradinger, William Bruce Anderson, Mark A. Pondelick, Michael B. Hancock, Arthur J. McGowan, Jr. +1 more 2002-02-26
6349424 Rinse fluid valve for a vacuum toilet Jay D. Stradinger, William Bruce Anderson, Mark A. Pondelick, Michael B. Hancock, Arthur J. McGowan, Jr. +1 more 2002-02-26
6347416 Vacuum toilet bowl assembly having a removable bowl William Bruce Anderson, Mark A. Pondelick, Jay D. Stradinger, Arthur J. McGowan, Jr., Michael B. Hancock +1 more 2002-02-19
6305403 Aeration apparatus for a vertical riser in a vacuum drainage system Bjorn von Palffy, Jay D. Stradinger 2001-10-23
6283140 Waste fluid discharge column Bjorn von Palffy 2001-09-04