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                        Blowout preventer closing circuit
                    
                                            
                                - 
                                    Patent number 11,525,468
                                
 
                                - 
                                    Issue date Dec 13, 2022
                                
 
                        
                                            
                                - 
                                        
                                    Halliburton Energy Services, Inc.
                                 
                                - 
                                        
                                    Mickie  Theriot
                                 
                        
                                            
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                                    F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
                                 
                        
                 
             
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                        Coiled tubing injector apparatus
                    
                                            
                                - 
                                    Patent number 6,968,894
                                
 
                                - 
                                    Issue date Nov 29, 2005
                                
 
                        
                                            
                                - 
                                        
                                    Halliburton Energy Services, Inc.
                                 
                                - 
                                        
                                    Larry L.  Austbo
                                 
                        
                                            
                                - 
                                        
                                    B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
                                 
                        
                 
             
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                        Coiled tubing injector apparatus
                    
                                            
                                - 
                                    Patent number 6,910,530
                                
 
                                - 
                                    Issue date Jun 28, 2005
                                
 
                        
                                            
                                - 
                                        
                                    Halliburton Energy Services, Inc.
                                 
                                - 
                                        
                                    Larry L.  Austbo
                                 
                        
                                            
                                - 
                                        
                                    B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
                                 
                        
                 
             
            - 
                
                
                    
                        Coiled tubing injector apparatus
                    
                                            
                                - 
                                    Patent number 6,892,809
                                
 
                                - 
                                    Issue date May 17, 2005
                                
 
                        
                                            
                                - 
                                        
                                    Halliburton Energy Services, Inc.
                                 
                                - 
                                        
                                    Larry L.  Austbo
                                 
                        
                                            
                                - 
                                        
                                    B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
                                 
                        
                 
             
            - 
                
                
                    
                        Coiled tubing injector apparatus
                    
                                            
                                - 
                                    Patent number 6,719,043
                                
 
                                - 
                                    Issue date Apr 13, 2004
                                
 
                        
                                            
                                - 
                                        
                                    Halliburton Energy Services, Inc.
                                 
                                - 
                                        
                                    Larry L. Austbo
                                 
                        
                                            
                                - 
                                        
                                    B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL