| 6322752 |
Method and apparatus for aspirating and dispensing liquids |
Imran T. Siddiqui, Roberto Del Valle, Santos E. Vargas |
2001-11-27 |
| 5255568 |
Liquid sample/reagent metering and delivery method |
Roberto Del Valle, Santos E. Vargas |
1993-10-26 |
| 5158751 |
Liquid metering and transfer valve assembly |
Roberto Del Valle, Santos E. Vargas |
1992-10-27 |
| 4896546 |
Liquid metering and transfer valve assembly |
Daniel Estoque |
1990-01-30 |
| 4702889 |
Liquid sampling valve |
Humberto Berra, Edward N. Doty |
1987-10-27 |
| 4653719 |
Fluid conduit and pinch valve for use therewith |
Glenn D. Talbot |
1987-03-31 |
| 4507977 |
Liquid metering and transfer valve assembly |
— |
1985-04-02 |
| 4445391 |
Liquid metering and transfer valve assembly |
— |
1984-05-01 |
| 4387076 |
Sample feeding arrangement |
Glenn D. Talbot, Larry C. Carman |
1983-06-07 |
| 4220621 |
Backwash system for diluting apparatus |
Ronald O. Simpson |
1980-09-02 |