View source for Danish Patent and Trademark Office


Jørgen Burghardt tells us the '''Danish Patent and Trademark Office''' and its data go back to 1864. There was a reform in 1894 which seems not to have made a big difference.

Burghardt analyzed foreign filers in a sample of Danish patents.<ref>http://bit.ly/2LZv4fN</ref>

The current Danish Patent and Trademark Office has a web site at http://www.dkpto.org/ Danish Patent and Trademark Office.

=== Patent classifications ===
* [[Danish patent classifications]] -- The same or very similar to the German one.  Notably, klasse 77 refers to aeronautics.

The Danish patent office used the German Patent Classification (DPK) for many years. ''[[Gruppeneinteilung der Patentklassen]]'' (''Grouping of the patent classes'') started in 1877 in Germany and had seven editions between 1906 and 1958, and with a total new edition in 1975 based on groups from [[IPC]]. The DPK has 89 classes, most with subclasses and subgroups. The Danish patent administration published a printed version in Danish in 1938.
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[[Category: Denmark]]
[[Category: Patent offices]]