| 7032649 |
Energy transfer system for cold storage facilities |
Edward R. Schulak |
2006-04-25 |
| 6484794 |
Energy transfer system for cold storage facilities |
Edward R. Schulak |
2002-11-26 |
| 6463755 |
Energy transfer system for refrigerator/freezer components |
Edward R. Schulak, Joseph A. Pietsch |
2002-10-15 |
| 6230514 |
Energy transfer system for refrigerator freezer components |
Edward R. Schulak, Joseph A. Pietsch |
2001-05-15 |
| 5964101 |
Energy transfer system for refrigerator/freezer components |
Edward R. Schulak, Joseph A. Pietsch |
1999-10-12 |
| 5937662 |
Energy transfer system for refrigerator/freezer components |
Edward R. Schulak, Joseph A. Pietsch |
1999-08-17 |
| 5904051 |
Energy transfer system for refrigeration/freezer components |
Edward R. Schulak, Joseph A. Pietsch |
1999-05-18 |
| 5816063 |
Energy transfer system for refrigerator/freezer components |
Edward R. Schulak, Joseph A. Pietsch |
1998-10-06 |
| 5666817 |
Energy transfer system for refrigerator/freezer components |
Edward R. Schulak |
1997-09-16 |