Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11166441 | Vapor delivery container with flow distributor | Charles Michael Birtcher, Robert Eschbach, James Patrick Nehlsen | 2021-11-09 |
| 10663072 | Valve block having minimal deadleg | Charles Michael Birtcher, Gildardo Vivanco | 2020-05-26 |
| 9580293 | Diptube design for a host ampoule | Charles Michael Birtcher, Gildardo Vivanco | 2017-02-28 |
| 6276404 | Chemical delivery system with spill containment door | Charles Michael Birtcher, Thomas Andrew Steidl | 2001-08-21 |