- 
                
                
                    
                        Tube settler assembly
                                - 
                                    Patent number 5,384,178
                                
- 
                                    Issue date Jan 24, 1995
                                
 
                                - 
                                         Brentwood Industries, Inc Brentwood Industries, Inc
- 
                                         Palle  Rye Palle  Rye
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
            
- 
                
                
                    
                        Corrugated sheet assembly
                                - 
                                    Patent number 5,217,788
                                
- 
                                    Issue date Jun 8, 1993
                                
 
                                - 
                                         Brentwood Industries Brentwood Industries
- 
                                         Palle  Rye Palle  Rye
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        Structured tower packing
                                - 
                                    Patent number 4,950,430
                                
- 
                                    Issue date Aug 21, 1990
                                
 
                                - 
                                         Glitsch, Inc. Glitsch, Inc.
- 
                                         Gilbert K. Chen Gilbert K. Chen
 
                                - 
                                         B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
 
 
- 
                
                
                    
                        Contact bodies
                                - 
                                    Patent number 4,668,443
                                
- 
                                    Issue date May 26, 1987
                                
 
                                - 
                                         Brentwood Industries, Inc Brentwood Industries, Inc
- 
                                         Palle  Rye Palle  Rye
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        Contact body for liquid and gas
                                - 
                                    Patent number 4,139,584
                                
- 
                                    Issue date Feb 13, 1979
                                
 
                                - 
                                         Aktiebolaget Svenska Flaktfabriken Aktiebolaget Svenska Flaktfabriken
- 
                                         Roy B. Holmberg Roy B. Holmberg
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        Sheet with alternate protrusions and recesses
                                - 
                                    Patent number 3,992,162
                                
- 
                                    Issue date Nov 16, 1976
                                
 
                                - 
                                         Marc Wood International, Inc. Marc Wood International, Inc.
- 
                                         Lucien Victor Gewiss Lucien Victor Gewiss
 
                                - 
                                         B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING... B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
 
 
- 
                
                
                    
                        3925021
                                - 
                                    Patent number 3,925,021
                                
- 
                                    Issue date Dec 9, 1975
                                
 
                                - 
                                         F24 - HEATING RANGES VENTILATING F24 - HEATING RANGES VENTILATING
 
 
- 
                
                
                    
                        3800515
                                - 
                                    Patent number 3,800,515
                                
- 
                                    Issue date Apr 2, 1974
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3792841
                                - 
                                    Patent number 3,792,841
                                
- 
                                    Issue date Feb 19, 1974
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3738626
                                - 
                                    Patent number 3,738,626
                                
- 
                                    Issue date Jun 12, 1973
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3724825
                                - 
                                    Patent number 3,724,825
                                
- 
                                    Issue date Apr 3, 1973
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3704869
                                - 
                                    Patent number 3,704,869
                                
- 
                                    Issue date Dec 5, 1972
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3682747
                                - 
                                    Patent number 3,682,747
                                
- 
                                    Issue date Aug 8, 1972
                                
 
                                - 
                                         B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
 
 
- 
                
                
                    
                        3664095
                                - 
                                    Patent number 3,664,095
                                
- 
                                    Issue date May 23, 1972
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3586591
                                - 
                                    Patent number 3,586,591
                                
- 
                                    Issue date Jun 22, 1971
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3526393
                                - 
                                    Patent number 3,526,393
                                
- 
                                    Issue date Sep 1, 1970
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3500615
                                - 
                                    Patent number 3,500,615
                                
- 
                                    Issue date Mar 17, 1970
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3470280
                                - 
                                    Patent number 3,470,280
                                
- 
                                    Issue date Sep 30, 1969
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3265550
                                - 
                                    Patent number 3,265,550
                                
- 
                                    Issue date Aug 9, 1966
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        3227429
                                - 
                                    Patent number 3,227,429
                                
- 
                                    Issue date Jan 4, 1966
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        2986379
                                - 
                                    Patent number 2,986,379
                                
- 
                                    Issue date May 30, 1961
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        2809818
                                - 
                                    Patent number 2,809,818
                                
- 
                                    Issue date Oct 15, 1957
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        2793017
                                - 
                                    Patent number 2,793,017
                                
- 
                                    Issue date May 21, 1957
                                
 
                                - 
                                         F28 - HEAT EXCHANGE IN GENERAL F28 - HEAT EXCHANGE IN GENERAL
 
 
- 
                
                
                    
                        2019186
                                - 
                                    Patent number 2,019,186
                                
- 
                                    Issue date Oct 29, 1935
                                
 
                                - 
                                         B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL