Patent Marks
D.R.G.M.
Deutsche Reichs-Gebrauchsmuster
As a result of increasing industrialization and the increased movement of goods, but above all in the course of increasing economic interests at national level, after the founding of the German Empire , similar to a law on the protection of design patents (1876), the decree of a utility model protection also arose. An imperial law of June 1, 1891 created the legal prerequisites for the German Empire, so that the Imperial Patent Office introduced the “Deutsche Reichs-Gebrauchsmuster" (German Imperial Utility Model) on October 1, 1891. Numerous products were marked between 1891 and around 1945 with the designation "DRGM", often with the addition of the model number, which today makes it possible to narrow down the time of origin of some historical devices that have come down to us physically to a specific decade. Even a few years after the Second World War, this designation was occasionally still common in West Germany. After the founding of the Federal Republic of Germany, the abbreviation was then "DBGM" (Deutsches Bundes-Gebrauchsmuster).
D.R.P.
Deutsches Reichspatent
D.R.P. stands for 'Deutsches Reichspatent' (German Imperial Patent). Such a patent registration was based on the Reichspatentgesetz, the German imperial patent law, which had been verified by the German authorities on May 25th 1877.
The decision had not been easy at all, in fact the first ideas for such a law had actually been discussed by the Prussian Board of Trade back in July 1853. Even if it had taken 24 years for the authorities to set it up, its introduction was on extreme short notice as it was declared operational as from July 1st 1877, a mere month after its verification.
​
After the abolition of the monarchy in 1918, the authority was given the name Reich Patent Office .