Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7261118 | Method and vessel for the delivery of precursor materials | Charles Michael Birtcher, Robert D. Clark, Arthur Kenneth Hochberg, Thomas Andrew Steidl | 2007-08-28 |
| 7124913 | High purity chemical container with diptube and level sensor terminating in lowest most point of concave floor | Charles Michael Birtcher, Gildardo Vivanco, Thomas Andrew Steidl | 2006-10-24 |