Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5513961 | Method and apparatus for improving pump net positive suction head | Gerald E. Engdahl, Joseph P. Mavec | 1996-05-07 |
| 5255523 | Method and apparatus for determining the solid fraction of a stored cryogenic refrigeration system | Kenneth L. Burgers, Arif Y. Kiziltug, Royce J. Laverman | 1993-10-26 |
| 5140275 | Method and apparatus for measuring the amount of ice in an aqueous ice slurry | Tushar K. Shah | 1992-08-18 |
| 4936114 | Apparatus and method of freeze concentrating aqueous waste and process streams to separate water from precipitable salts | Gerald E. Engdahl, James H. Richardson, Matloob Husain | 1990-06-26 |
| 4452302 | Heat exchanger with polymeric-covered cooling surfaces and crystallization method | — | 1984-06-05 |