T 0840/24 - Opponent's prior use and confidentiality of sale

Key points

• The opponent is Siemens. D1 is "Company publication "Desiro Class 380", Siemens AG". The opponent asserts public prior use based on D1, i.e. public prior use by the opponent, namely a sale of the vehicle by the opponent to a customer. 
• The Board, in translation: "The Opposition Division concluded that the sale had made the prior use of "ScotRail Desiro Class 380" freely available to the public and that there were no specific circumstances that would justify the existence of a confidentiality obligation"
• "Documents D1 and D2 show that before the priority date of the patent, 4 July 2017, Desiro Class 380 rail vehicles were sold and delivered by the respondent [= the opponent] to the Scottish railway company ScotRail in July 2010."
• "In connection with the possible existence of a confidentiality agreement, the Opposition Division has already referred to decision T 2037/18 (point 4 of the headnote), according to which there is no fundamental presumption of confidentiality between manufacturers of railway vehicles and railway operating companies with regard to delivered and accepted vehicles.
• "Furthermore, each party must present and prove the facts favorable to its case. Therefore, in accordance with the principle "negativa non sunt probanda" recognized in the case law of the Boards of Appeal, any binding effect of a confidentiality agreement on the part of the recipient must be presented and proven by the patent proprietor (see case law, IV.C.2.2.8i))."
• The principle "negativa non sunt probanda" is generally correct, but in this case, all the evidence is in the sphere of the opponent, and the opponent must prove the alleged public prior use up to the hilt.
• The Board's reasoning is obiter because the Board holds that the prior use lacks a feature of the claim. Hence, the claim is novel over it. There were no other objections, and the Board set aside the impugned decision and maintained the patent as granted.
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EPO 

The link to the decision is provided after the jump.

https://www.epo.org/de/boards-of-appeal/decisions/t240840du1