Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4909716 | Screw step drive internal volume ratio varying system for helical screw rotary compressor | Joseph S. Orosz, Anthony J. Bianco | 1990-03-20 |
| 4545742 | Vertical axis hermetic helical screw rotary compressor with discharge gas oil mist eliminator and dual transfer tube manifold for supplying liquid refrigerant and refrigerant vapor to the compression area | — | 1985-10-08 |
| 4508491 | Modular unload slide valve control assembly for a helical screw rotary compressor | — | 1985-04-02 |
| 4477233 | Vertical axis hermetic helical screw rotary compressor with discharge gas oil mist eliminator and dual transfer tube manifold for supplying liquid refrigerant and refrigerant vapor to the compression area | — | 1984-10-16 |
| 4383802 | Oil equalization system for parallel connected compressors | Sebastian J. Gianni | 1983-05-17 |
| 4220197 | High speed variable delivery helical screw compressor/expander automotive air conditioning and waste heat energy _recovery system | David N. Shaw, Joseph A. L. N. Gagnon | 1980-09-02 |