Alfa Laval Thermal AB
29Patents
0Active
29Granted
32Portfolio score
Filing activity: Jan 24, 1985 → Aug 6, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4987955A | Permanently joined plate heat exchanger | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4976313A | Plate heat exchanger with a double-wall structure | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4699212A | Plate heat exchanger | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4915165A | Plate heat exchanger | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4911235A | Plate heat exchanger | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US5924484A | Plate heat exchanger | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5174370A | Plate evaporator | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5307869A | Permanently joined plate heat exchanger | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5291945A | Brazed plate heat exchanger | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4635715A | Gasket arrangement for a plate heat exchanger | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5226474A | Plate evaporator | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5178207A | Plate heat exchanger with leakage detector | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5509471A | Distribution pattern of a plate heat exchanger | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4966227A | Plate evaporator | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4848451A | Plate heat exchanger | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5492171A | Plate heat exchanger, a method of producing a plate heat exchanger and means for performing the method | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5472738A | Method of providing heat transfer plates with a layer of a surface protecting material | Performing Operations; Transporting | 9 | Expired |
| US5638899A | Welded plate heat exchanger | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4813478A | Plate heat exchanger | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4804040A | Plate heat exchanger | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4909318A | Method and apparatus for recovering heat from flue gases and for cleaning the same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4871013A | Device to prevent through-flow of a port in a plate heat exchanger | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5033543A | Lining for plate heat exchanger | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4800007A | Corrosion protection for heat exchangers | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4750555A | Device in a frame plate for a plate heat exchanger | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.