German Patent # 580,550 - Durex 1932

German Patent # 580,550 - Durex 1932

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date September 1932
• Derailleur brands: Durex
• Derailleurs: Durex

German Patent # 624,501 - Wanderer 1932

German Patent # 624,501 - Wanderer 1932

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date October 1932
• Derailleur brands: Wanderer, J.Wi.S
• Derailleurs: Wanderer

German Patent # 595,542 - Durex 1933

German Patent # 595,542 - Durex 1933

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date April 1933
• Derailleur brands: Durex
• Derailleurs: Durex

German Patent # 743,545 - Kreis 1940

German Patent # 743,545 - Kreis 1940

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date February 1940
• Derailleur brands: Kreis
• Derailleurs: Kreis automatic

German Patent # 911,355 - Kreis 1941

German Patent # 911,355 - Kreis 1941

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date October 1941
• Derailleur brands: Kreis
• Derailleurs: Kreis automatic

German Patent # 817,564 - Kreis 1949

German Patent # 817,564 - Kreis 1949

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date September 1949
• Derailleur brands: Kreis
• Derailleurs: Kreis automatic

German Patent # 817,565 - Kreis 1949

German Patent # 817,565 - Kreis 1949

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date September 1949
• Derailleur brands: Kreis
• Derailleurs: Kreis automatic

German Patent # 850,406 - Kreis 1950

German Patent # 850,406 - Kreis 1950

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date January 1950
• Derailleur brands: Kreis
• Derailleurs: Kreis automatic

German Patent # 813,121 - Hermann Klaue 1950

German Patent # 813,121 - Hermann Klaue 1950

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date February 1950
• Derailleur brands: Hermann Klaue
• Derailleurs: unknown

German Patent # 825,662 - Velo-Reinhold 1950

German Patent # 825,662 - Velo-Reinhold 1950

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date April 1950
• Derailleur brands: Velo-Reinhold
• Derailleurs: Velo-Reinhold Bismarck

German Patent # 858,934 - Altenburger 1951

German Patent # 858,934 - Altenburger 1951

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date June 1951
• Derailleur brands: Altenburger, development of a Cervino design
• Derailleurs: Altenburger S-O

German Patent # 1,667,114 - Honer 1953

German Patent # 1,667,114 - Honer 1953

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date August 1953
• Derailleur brands: Honer
• Derailleurs: none

German Patent # 1,945,108 - Ofmega 1966

German Patent # 1,945,108 - Ofmega 1966

• Publisher: Deutsches Patent- und Markenamt
• Date: Italian application filed March 1966, German application filed May 1966
• Derailleur brands: Ofmega
• Derailleurs: none

German Patent # 1,605,804 - Tachyon 1967

German Patent # 1,605,804 - Tachyon 1967

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority Date December 1967
• Derailleur brands: Tachyon
• Derailleurs: none known

German Patent # 2,314,555 - Sachs 1973

German Patent # 2,314,555 - Sachs 1973

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date March 1973
• Derailleur brands: Sachs, Fichtel & Sachs
• Derailleurs: Sachs prototype

German Patent # 94 16 051 - Lightweight 1994

German Patent # 94 16 051 - Lightweight 1994

• Publisher: Deutsches Patent- und Markenamt
• Date: Priority date October 1994
• Derailleur brands: Lightweight
• Derailleurs: none

German Patent # 20 2006 013 340 - 5Rot

German Patent # 20 2006 013 340 - 5Rot

• Publisher: Deutsches Patent- und Markenamt
• Date: German application filed August 2006
• Derailleur brands: 5rot, Acros
• Derailleurs: 5rot

German Patent # 20 2006 013 341 - 5Rot

German Patent # 20 2006 013 341 - 5Rot

• Publisher: Deutsches Patent- und Markenamt
• Date: German application filed August 2006
• Derailleur brands: 5rot, Acros
• Derailleurs: 5rot