CB

Charles Michael Birtcher

Air Products And Chemicals: 20 patents #76 of 1,997Top 4%
VU Versum Materials Us: 9 patents #24 of 174Top 15%
📍 Valley Center, CA: #6 of 119 inventorsTop 6%
🗺 California: #17,896 of 386,348 inventorsTop 5%
Overall (All Time): #129,346 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
6648034 Purgeable manifold for low vapor pressure chemicals containers Martin Castaneda Martinez, Thomas Andrew Steidl, Gil Vivanco, David Silva 2003-11-18
6431229 Solventless purgeable diaphragm valved manifold for low vapor pressure chemicals Robert Sam Zorich, Thomas Andrew Steidl, Gil Vivanco, Cynthia Lee Trent, David Silva 2002-08-13
6276404 Chemical delivery system with spill containment door Thomas Andrew Steidl, William Jon Sheehy 2001-08-21
6264064 Chemical delivery system with ultrasonic fluid sensors Thomas Andrew Steidl, Martin Castaneda Martinez, Jamshid Jay Hamidi 2001-07-24