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                        Refiner device for refining of a liquid
                    
                                            
                                - 
                                    Patent number 11,969,676
                                
 
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                                    Issue date Apr 30, 2024
                                
 
                        
                                            
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                                    COT—Clean Oil Technology AB
                                 
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                                    Magnus  Lindstam
                                 
                        
                                            
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                                    B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
                                 
                        
                 
             
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                        Back-flushable filter
                    
                                            
                                - 
                                    Patent number 5,171,433
                                
 
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                                    Issue date Dec 15, 1992
                                
 
                        
                                            
                                - 
                                        
                                    Peretz  Rosenberg
                                 
                        
                                            
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                                    F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
                                 
                        
                 
             
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                        Self cleaning by-pass filtration arrangement
                    
                                            
                                - 
                                    Patent number 4,905,644
                                
 
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                                    Issue date Mar 6, 1990
                                
 
                        
                                            
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                                    Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "SNECMA"
                                 
                                - 
                                        
                                    Dominique Y. G. Masclet
                                 
                        
                                            
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                                    F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
                                 
                        
                 
             
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                        Filter fitted with a deblinding device
                    
                                            
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                                    Patent number 4,601,826
                                
 
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                                    Issue date Jul 22, 1986
                                
 
                        
                                            
                                - 
                                        
                                    Moatti; Georges
                                 
                                - 
                                        
                                    Theophile  Christophe
                                 
                        
                                            
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                                    F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
                                 
                        
                 
             
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                        Self-cleaning fluid filter with a drain
                    
                                            
                                - 
                                    Patent number 4,581,135
                                
 
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                                    Issue date Apr 8, 1986
                                
 
                        
                                            
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                                    Kova; Henry C.
                                 
                                - 
                                        
                                    Benedict R. Gerulis
                                 
                        
                                            
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                                    F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
                                 
                        
                 
             
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                        Apparatus for controlling fluid medium flow
                    
                                            
                                - 
                                    Patent number 4,430,220
                                
 
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                                    Issue date Feb 7, 1984
                                
 
                        
                                            
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                                    Flutec Fluidtechnische Gerate GmbH
                                 
                                - 
                                        
                                    Wolfgang  Litzenburger
                                 
                        
                                            
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                                    F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
                                 
                        
                 
             
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                        3907686
                    
                                            
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                                    Patent number 3,907,686
                                
 
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                                    Issue date Sep 23, 1975
                                
 
                        
                                                                
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                                    F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
                                 
                        
                 
             
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                        3784016
                    
                                            
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                                    Patent number 3,784,016
                                
 
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                                    Issue date Jan 8, 1974
                                
 
                        
                                                                
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                                    B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
                                 
                        
                 
             
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                        3734299
                    
                                            
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                                    Patent number 3,734,299
                                
 
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                                    Issue date May 22, 1973
                                
 
                        
                                                                
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                                    F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES