- In this opposition case, claim 1 is directed to a pipe comprising a polyethylene resin, the resin having a number of parameter features including "an F time in Jana Laboratories Procedure APTF-2 of at least 1000 hours, under the following conditions: ... (± 10 percent)".
- The Board finds the claim to be insufficiently disclosed.
- " in the absence of any information in the patent in suit on how to determine the F time feature, the skilled person has no idea which kind of installation should be used in order to carry out said test according to said procedure APTF-2, nor any knowledge of how the test is carried out and how a failure is identified. The mere indication of some parameters to be fulfilled (as indeed specified in claim 1 of the main request) is of no help if the skilled person does not know on which installation said parameters are to be set and how a failure is identified."
- The patentee submitted that "the Jana Laboratories Procedure APTF-2 was an established procedure, which was publicly offered as a service by Jana Laboratories."
- The Board: "However, it is derivable from the fourth paragraph on page 1 of C9 that the testing methodology APTF-2 was kept secret (see wording "proprietary testing methodologies" and "proprietary analysis methodologies", whereby the emphasis is made by the Board), i.e. it was not available to the public."
- "considering that the appellant has deliberately defined the subject-matter of operative claim 1 by the way of an - apparently - unusual parameter and using a method which was not shown to be commonly used in the art, it would have been its duty to provide full information how said method should be carried out. Since, as explained above, that requirement is in the present case not satisfied, there is a fundamental lack of technical information concerning the determination method of the F time feature according to the Jana Laboratories Procedure APTF-2 mentioned in operative claim 1, so that it is not possible to know what measures have to be taken to produce a pipe according to claim 1 as it is not possible to verify whether a product having the property as claimed is obtained. This amounts to a lack of sufficient disclosure."
- The Patentee submitted that the issue was a matter of clarity. The Board "the issue at stake is not related to an alleged ambiguity in the determination of a parameter, which could indeed in some cases be a matter of clarity, but rather to a lack of essential information in order to run a specific procedure (namely the APTF-2 procedure), which was not shown to be usual in the art and which is necessary to determine an unusual feature (F time) mentioned in the operative claims. In other words the lack of information does not result in the claim being unduly broad or with unclear edges, but derives from the presence of a parameter which is in itself very specific, but whose method of measurement is kept secret. Therefore, the appellant's argument is rejected."
2. Sufficiency of disclosure
2.1 In order to meet the requirements of sufficient disclosure, an invention has to be disclosed in a manner sufficiently clear and complete for it to be carried out by the skilled person, without undue burden, on the basis of the information provided in the patent specification, if needed in combination with the skilled person's common general knowledge. This means in the present case that the skilled person should in particular be able to prepare a pipe according to claim 1, which is disputed by the respondents.
2.2 The pipe according to claim 1 is characterised by a combination of structural features related to the definition of a polyethylene resin and of antioxidants which have to be mandatorily present, with the additional functional feature "an F time in Jana Laboratories Procedure APTF-2 of at least 1000 hours, under the following conditions: ... (± 10 percent)".
2.3 The respondents argued that the patent failed to provide fundamental technical information on how to measure said feature "F time".
2.3.1 In that respect, it is noted that that issue was already addressed by the parties in the first instance proceedings, but that the opposition division reached its decision under the assumption that the patent proprietor's arguments could be adhered to (see section V above: last sentence).
2.3.2 In addition, the opposition division's conclusion according to which said functional feature was not mandatorily implicitly satisfied by all the pipes falling under the structural definition of claim 1 (reasons of the decision: page 9, second and third paragraphs), which was further adhered to by the respondents, was not contested by the appellant, in particular during the oral proceedings before the Board.
2.3.3 Furthermore, it was undisputed that the sole information provided by the patent in suit in relation to said F time feature and to the Jana Laboratories Procedure APTF-2 is the one which is indicated in operative claim 1.