1925
In 1925, Alfred Büttner, owner of the company Bayrische Elektrozubehör A.G. presents a „plug with grounding device“ on a fair in Leipzig, for which a patent registration with the number DE 489003 is granted on January 22, 1926. The patent specification describes a socket corresponding to the plug, which is still the basis of today’s SCHUKO-systems.
1929
Alfred Büttner’s approach is further developed by Wilhelm Klement, an employee of Siemens-Schuckert -Werke A.G. in Berlin-Siemensstadt, and documented in two patents (DE 530143, registered October 09, 1929, and DE 567906, registered December 25, 1929), which already incorporate the general idea that plug and socket are equipped with protective-earth contacts that are still valid today.
1929
1930
On December 11, 1930, the first word mark „SCHUKO“ in class 9 for the goods „Electrical installation material, in particular installation devices“ is filed in Germany, followed by its registration on May 21, 1931. The trademark is still in force today.
1954
SCHUKO-Warenzeichenverband e.V. is founded for the purpose of administration, registration and defense of the “SCHUKO”-trademarks. In the same year, the first collective trademark „SCHUKO“ is registered. The logo …, which is still used worldwide today, is created three years later.
1954
1988
SCHUKO-Warenzeichenverband e.V. is founded for the purpose of administration, registration and defense of the “SCHUKO”-trademarks. In the same year, the first collective trademark „SCHUKO“ is registered. The logo …, which is still used worldwide today, is created three years later.
2020
The SCHUKO-system has been and will also be developed in future in order to meet technical changes, new applications and increased safety requirements in the market. This also includes specific product solutions such as IP44, a solutions for difficult conditions or systems with integrated USB interface(s).
In all cases, geometric backward compatibility has to be ensured so that all SCHUKO- and EURO- plugs already on the market today, can also be contacted safely in the future.
In addition to isolated product solutions, system solutions are of increasing importance. It is not just a matter of a socket and a plug, but of the intelligent integration of these two products into a complex electrical infrastructure that must be designed to be future- and investment-proof.
2020
