Frola; Frank R.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Frola; Frank R..The latest application filed is for "cylinder filling oxygen concentrator".
- Frola; Frank R. - Somerset PA
- Frola; Frank R. - Trafford PA
- Frola; Frank R. - North Huntington PA
| Patent | Date |
|---|---|
| Cylinder filling oxygen concentrator Grant 7,550,031 - Hunter , et al. June 23, 2 | 2009-06-23 |
| Energy efficient oxygen concentrator Grant 7,445,663 - Hunter , et al. November 4, 2 | 2008-11-04 |
| Cylinder Filling Oxygen Concentrator App 20070084342 - Hunter; Donald W. ; et al. | 2007-04-19 |
| Apparatus and method for monitoring supplemental oxygen usage App 20050022815 - Frola, Frank R. | 2005-02-03 |
| Gas concentration and/or flow sensor Grant 5,247,826 - Frola , et al. September 28, 1 | 1993-09-28 |
| Measurement of pH and specific ion concentration Grant 5,124,659 - Frola , et al. June 23, 1 | 1992-06-23 |
| Measurement of pH and specific ion concentration Grant 4,912,417 - Gibboney , et al. March 27, 1 | 1990-03-27 |
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