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                        Advanced adsorbent for PSA
                    
                                            
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                                    Patent number 6,425,940
                                
 
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                                    Issue date Jul 30, 2002
                                
 
                        
                                            
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                                    Praxair Technology, Inc.
                                 
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                                    Chien-Chung  Chao
                                 
                        
                                            
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                                    B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
                                 
                        
                 
             
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                        Air separation process
                    
                                            
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                                    Patent number 5,454,857
                                
 
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                                    Issue date Oct 3, 1995
                                
 
                        
                                            
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                                    UOP
                                 
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                                    Chien-Chung  Chao
                                 
                        
                                            
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                                    B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
                                 
                        
                 
             
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                        Adsorbent compositions
                    
                                            
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                                    Patent number 4,474,896
                                
 
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                                    Issue date Oct 2, 1984
                                
 
                        
                                            
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                                    Union Carbide Corporation
                                 
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                                    Chien C. Chao
                                 
                        
                                            
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                                    C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
                                 
                        
                 
             
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