Recueil des Brevets d'Invention

RdBdI 1909 Volume II

Chaigneau 1909 Search

Patent BE-1909-218585

Zens 1910 RdBdI index search

RdBdI index search on Pio 1913

These were the primary source of patent listings and categorization of patents filed and documented by the Belgian state, that is, patents filed in Belgium.

Use of this resource is straightforward, to a degree, though time-consuming. It is purely analogue, at present, with the pages generally not existing, anywhere, as image files, not to mention digital searchability by way of text content.

Each year has two volumes, the index material for the two volumes being included at the end of the second volume. As with the French Bulletin Officiel de la propriété industrielle & commerciale, the volumes are sectioned into months, and the months are sectioned according to invention categories.

One as it were simply searches the indexes, by patent title, inventor name, or field, such as "Aviation", such an example naturally often overlapping with patent title, or titles. This process is dictated in accordance with what information one already has on hand, and what information is sought.

Finding particular patents sought, perhaps following references made within other patents, Belgian or otherwise, is not difficult. Finding new material is also rather simple. Cross-tasking can be a matter leading to some complications if time is of the essence.

At present, particularly in the case of Belgian material pertinent to the years we are studying, this is the most efficient manner in which to find the patent number, and thereby conceivably to request access to the original.

Both the volumes of Recueil des Brevets d'Invention and the originals themselves are currently housed not at the State Archives of Belgium, as such, but at the AGR 2 - Cuvelier facility, also situated in Brussels.