Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10809115 | Ultrasonic liquid level sensing system | Charles Michael Birtcher | 2020-10-20 |
| 10480070 | Delivery container with flow distributor | Charles Michael Birtcher, James Patrick Nehlsen, Sergei Vladimirovich Ivanov, Kai Kang, Wade Hampton Bailey, III | 2019-11-19 |
| 10443128 | Vessel and method for delivery of precursor materials | Charles Michael Birtcher, Sergei Vladimirovich Ivanov | 2019-10-15 |
| 10151618 | Ultrasonic liquid level sensing systems | Charles Michael Birtcher | 2018-12-11 |
| 9598766 | Vessel with filter | Charles Michael Birtcher, Xinjian Lei, Sergei Vladimirovich Ivanov | 2017-03-21 |
| 9550260 | Ultrasonic liquid level sensing systems | Charles Michael Birtcher | 2017-01-24 |
| 9435027 | Splashguard and inlet diffuser for high vacuum, high flow bubbler vessel | Charles Michael Birtcher, Xinjian Lei | 2016-09-06 |
| 9316525 | Ultrasonic liquid level sensing systems | Charles Michael Birtcher | 2016-04-19 |
| 9109287 | Solid source container with inlet plenum | Charles Michael Birtcher | 2015-08-18 |
| 8959998 | Ultrasonic liquid level sensing systems | Charles Michael Birtcher | 2015-02-24 |
| 8944420 | Splashguard for high flow vacuum bubbler vessel | Charles Michael Birtcher | 2015-02-03 |
| 8708320 | Splashguard and inlet diffuser for high vacuum, high flow bubbler vessel | Charles Michael Birtcher, Xinjian Lei | 2014-04-29 |
| 8162296 | Splashguard for high flow vacuum bubbler vessel | Charles Michael Birtcher | 2012-04-24 |
| 8002247 | Cross purge valve and container assembly | Charles Michael Birtcher, John Eric Baker | 2011-08-23 |
| 7334595 | Cabinet for chemical delivery with solvent purging and removal | Charles Michael Birtcher, Martin Castaneda Martinez, Gil Vivanco, David Silva | 2008-02-26 |
| 7261118 | Method and vessel for the delivery of precursor materials | Charles Michael Birtcher, Richard J. Dunning, Robert D. Clark, Arthur Kenneth Hochberg | 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, Richard J. Dunning | 2006-10-24 |
| 6966348 | Purgeable container for low vapor pressure chemicals | Gildardo Vivanco, Charles Michael Birtcher | 2005-11-22 |
| 6953047 | Cabinet for chemical delivery with solvent purging | Charles Michael Birtcher, Martin Castaneda Martinez, Gil Vivanco, David Silva | 2005-10-11 |
| 6648034 | Purgeable manifold for low vapor pressure chemicals containers | Charles Michael Birtcher, Martin Castaneda Martinez, Gil Vivanco, David Silva | 2003-11-18 |
| 6431229 | Solventless purgeable diaphragm valved manifold for low vapor pressure chemicals | Charles Michael Birtcher, Robert Sam Zorich, Gil Vivanco, Cynthia Lee Trent, David Silva | 2002-08-13 |
| 6276404 | Chemical delivery system with spill containment door | Charles Michael Birtcher, William Jon Sheehy | 2001-08-21 |
| 6264064 | Chemical delivery system with ultrasonic fluid sensors | Charles Michael Birtcher, Martin Castaneda Martinez, Jamshid Jay Hamidi | 2001-07-24 |