Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10663072 | Valve block having minimal deadleg | Charles Michael Birtcher, William Jon Sheehy | 2020-05-26 |
| 9580293 | Diptube design for a host ampoule | Charles Michael Birtcher, William Jon Sheehy | 2017-02-28 |
| 7124913 | High purity chemical container with diptube and level sensor terminating in lowest most point of concave floor | Charles Michael Birtcher, Thomas Andrew Steidl, Richard J. Dunning | 2006-10-24 |
| 6966348 | Purgeable container for low vapor pressure chemicals | Thomas Andrew Steidl, Charles Michael Birtcher | 2005-11-22 |