Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7334595 | Cabinet for chemical delivery with solvent purging and removal | Charles Michael Birtcher, Martin Castaneda Martinez, Thomas Andrew Steidl, David Silva | 2008-02-26 |
| 6953047 | Cabinet for chemical delivery with solvent purging | Charles Michael Birtcher, Martin Castaneda Martinez, Thomas Andrew Steidl, David Silva | 2005-10-11 |
| 6648034 | Purgeable manifold for low vapor pressure chemicals containers | Charles Michael Birtcher, Martin Castaneda Martinez, Thomas Andrew Steidl, David Silva | 2003-11-18 |
| 6431229 | Solventless purgeable diaphragm valved manifold for low vapor pressure chemicals | Charles Michael Birtcher, Robert Sam Zorich, Thomas Andrew Steidl, Cynthia Lee Trent, David Silva | 2002-08-13 |