PD

P. David DeVries

AL Avista Laboratories: 1 patents #8 of 14Top 60%
Overall (All Time): #1,615,897 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6383556 Method for forming a membrane electrode diffusion assembly for use in an ion exchange membrane fuel cell David R. Lott 2002-05-07
6181367 Video image viewing device and method Stephen P. McGrew, Roger F. Wink, David H. Foster 2001-01-30
5973727 Video image viewing device and method Stephen P. McGrew, Roger F. Wink, David H. Foster 1999-10-26