Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8399262 | Biosensor | Darrel A. Mazzari | 2013-03-19 |
| 7199595 | Fluid quality control using broad spectrum impedance spectroscopy | David L. Wooton, Richard W. Hirthe | 2007-04-03 |
| 7078910 | Fluid formulation evaluation and improvement utilizing broad spectrum impedance spectroscopy | Richard W. Hirthe, Jianxun Hu, Charles Koehler, David R. Sosnowski, Ronald Mark Johnson +2 more | 2006-07-18 |
| 7049831 | Fluid quality control using broad spectrum impedance spectroscopy | David L. Wooton, Richard W. Hirthe | 2006-05-23 |
| 6839620 | Detecting soot during real time operation in diesel engine lubricant | Charles Koehler, Richard W. Hirthe | 2005-01-04 |
| 6380746 | Monitoring fluid condition with a spiral electrode configuration | Mark H. Polczynski, Paul G. Rops, Robert A. Bauer, Richard W. Hirthe | 2002-04-30 |
| 6300778 | Solder paste and residue | Michael D. Frederickson, Richard W. Hirthe, Mohammad N. Amin, Anthony L. Delieto, Alex E. Cragoe +2 more | 2001-10-09 |
| 6278281 | Fluid condition monitor | Robert A. Bauer, Richard W. Hirthe, Mark H. Polczynski, James E. Hansen | 2001-08-21 |
| 6005399 | Solder paste and residue measurement system | Michael D. Frederickson, Richard W. Hirthe, Mohammad N. Amin, Anthony L. Delieto, Alex E. Cragoe +2 more | 1999-12-21 |
| 5680055 | Method and apparatus to sense changes in the state of a resin bed | Charles Koehler, Richard W. Hirthe, Patrick J. Dupies, Don Vaughan | 1997-10-21 |
| 5656933 | Solder paste and residue measurement system | Michael D. Frederickson, Richard W. Hirthe, Mohammad N. Amin, Anthony L. Delieto, Alex E. Cragoe +2 more | 1997-08-12 |