Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7272512 | Flow sensor signal conversion | Chiun Wang, William S. Valentine | 2007-09-18 |
| 7231931 | System and method for a mass flow controller | Chiun Wang, William S. Valentine, Joseph A. Saggio, Jr. | 2007-06-19 |
| 7143774 | Method and apparatus for providing a determined ratio of process fluids | William S. Valentine | 2006-12-05 |
| 7114511 | System and method for a mass flow controller | Chiun Wang, William S. Valentine, Joseph A. Saggio, Jr. | 2006-10-03 |
| 7082824 | Variable resistance sensor with common reference leg | — | 2006-08-01 |
| 7073392 | Methods and apparatus for pressure compensation in a mass flow controller | Chiun Wang, Joseph A. Saggio, Jr. | 2006-07-11 |
| 7043374 | Flow sensor signal conversion | Chiun Wang, William S. Valentine | 2006-05-09 |
| 6962164 | System and method for a mass flow controller | Chiun Wang, William S. Valentine, Joseph A. Saggio, Jr. | 2005-11-08 |
| 6941965 | Method and apparatus for providing a determined ratio of process fluids | William S. Valentine | 2005-09-13 |
| 6923568 | Method and apparatus for blending process materials | Jeffrey A. Wilmer, Daniel Kase Mackenzie, Eric A. Zadai, Michael L. Walker | 2005-08-02 |
| 6845659 | Variable resistance sensor with common reference leg | — | 2005-01-25 |
| 6752166 | Method and apparatus for providing a determined ratio of process fluids | William S. Valentine | 2004-06-22 |
| 6539792 | Method and apparatus for balancing resistance | Nelson Urdaneta | 2003-04-01 |
| 4484217 | Method and system for remote reporting, particularly for pay television billing | Robert S. Block | 1984-11-20 |
| 4394769 | Dual modulus counter having non-inverting feedback | — | 1983-07-19 |