T 0058/87 24-11-1988

Reasons for the Decision

1. The appeal complies with Articles 106 to 108 and Rules 1(1) and 64(a) EPC. The appeal also complies with Rule 64(b) which stipulates that the notice of appeal shall identify the extent to which amendment or cancellation of the impugned decision is requested. The content of the impugned decision is purely and simply the maintenance of European patent No. 62 065 in an amended form. The formulation "the Decision set out in the first sentence of paragraph II-5 (of the interlocutory decision) is challenged" is therefore to be interpreted as meaning that the setting aside of the interlocutory decision in its entirety and the revocation of the European patent is being sought. The appeal is therefore admissible.

2. According to the provision of Article 52(4) EPC methods for treatment of the animal body by therapy practised on the animal body shall not be regarded as susceptible to industrial application.

2.1. The Board agrees in that the word "therapy"

- covers any non-surgical treatment which is designed to cure, alleviate, remove or lessen the symptom of, or prevent or reduce the possibility of contracting any malfunction of the animal body (cf. Patent Law of Europe and the United Kingdom by A.M. Walton, H.I.L. Laddie, J.P. Baldwin and D.J.T. Kitchin, 1983, page II [684]), and also

- relates to the treatment of a disease in general or to a curative treatment in the narrow sense as well as the alleviation of the symptoms of pain and suffering (cf. Chambers Twentieth Century Dictionary, 1399, "Therapy"; The Oxford English Dictionary, Vol. XI, 280, "Therapy"; and e.g., T 144/83 (point 3) - OJ, EPO 1986, 301).

2.3. The behaviour of newborn piglets to creep under the dam standing up to eat and drink either during or after farrowing cannot be fairly regarded as a malfunction of piglets whose instinct is not adequately developed. Furthermore, as far as the language of Claim 1, is concerned, it clearly covers a method for protection of piglets from the disadvantageous consequences of this behaviour, such as suffocating under the dam, by blowing air under the standing dam thus creating unpleasant conditions for the piglets. This cannot reasonably be called a treatment by therapy, which is practised on the bodies of piglets, within the meaning of Article 52(4) EPC. As the Opposition Division rightly considered, the invention is concerned with preventing accidents, analogous to a method of preventing a worker from trapping his hand in machinery.

2.4. Consequently, the Claims 1 and 2 comply with the requirements of Article 57 EPC.

3. With regard to the request of the Appellant to refer the point of law concerning Article 52(4) EPC to the Enlarged Board of Appeal, Article 112(1) EPC provides for the Enlarged Board of Appeal only to have questions referred to it by the Board of Appeal in connection with important points of law.

The question put forward by the Appellant is concerned with the meaning of the word "therapy". This is, however, a question which is already clearly answered by decisions of Boards of Appeal in line with the general acknowledged interpretation of this word (cf. above point 2.2). This Board of Appeal has not departed from the acknowledged interpretation.

There is, therefore, no reason to accede to the Appellants' request that the point of law raised by him be submitted to the Enlarged Board of Appeal.

4. Independent Claims 1 and 3 comprise a combination of the features mentioned in the independent Claims 1 and 3 as granted and in the description as granted (column 2, lines 43 to 51).

The dependent Claims 2 and 4 to 8 correspond to those as granted.

There is no formal objection to the current version of the claims, since it is also adequately supported by the description as filed.

The claims, therefore, comply with Article 123 EPC.

5. The precharacterising portions of Claim 1 and Claim 3 are derived from the prior art as demonstrated in GB-A-932 189. This document discloses a brooding pen comprising a particular bay in which the dam can stand or lie and a separate adjoining nest unit for the piglets. This nest unit can be raised approximately level with the floor of the particular bay or can be lowered to a safe distance below said floor when the dam is lying upright or standing. Any vertical movement away from the suckling position by the dam is detected by photo-electric cell units. These units are arranged to actuate driving means for raising or lowering the nest unit. The drawback of the known device is its complex structure, which leads to a high price. From this follows that the problem to be solved by the invention is to provide a simpler, therefore less costly, device (cf. EP-B-0 062 065, column 1, lines 32 to 48).

According to the teaching of the independent claims, the solution of this problem is based on the idea of creating conditions under the dam as soon as the standing up of the dam is detected, which conditions are uncomfortable for newborn piglets.

6. The examination as to whether the subject-matter of Claim 1 and Claim 3 is novel results in the following:

6.1. None of the documents to which the Appellant refers in paragraph 3 of his Statement of Grounds, discloses a method or an apparatus using a sensor which indicates when the dam stands up or lies down:

- Exhibit B describes the application of heat in a farrowing pen and its influence on the efficiency depending on the side of the dam and the location on the pen where the heat is provided. Heating may be carried out in conjunction with a pressurised ventilation system.

- Exhibit C describes the effects of zone ventilation with cooled and uncooled air on the performance of sows and their litters during the first weeks of the farrowing- lactation period. The ambient-air temperature of the building was maintained at 35°C (90°F) and the temperature of the air delivered to the sows was always at 18 to 19°C (65°F). At these temperatures the sows were more comfortable and performed better than the uncooled sows.

- Exhibit C2 deals with the specification of a blower and its operating conditions.

- Exhibit D relates to a fan control by hand, thermostats or time switches.

- Exhibit E concerns alternative ventilation systems. Since pigs do better when they are housed in comfortable air conditions, kept at the correct temperature, the insulation and ventilation must be correct to achieve optimum conditions.

6.2. None of the other documents cited in the patent specification nor during the opposition procedure discloses the method and apparatus according to Claim 1 and Claim 3. Since the Appellant did not dispute the novelty with respect to this state of the art, it is unnecessary to give the reason in detail.

6.3. The subject-matter of the independent claims is therefore novel in relation to the revealed state of the art.

7. On the question of whether or not the subject-matter of Claim 1 and Claim 3 was obvious, the following should be observed:

7.1. The documents, which were cited by the Appellant during the Opposition procedure with respect to inventive step of the subject-matter, are the Exhibits F, G and G2:

7.1.1. Exhibit G concerns bacon and pork production in pig producing countries from 1938 until 1956 as well as the conditions influencing this production. The teaching of this citation is the same as that of the documents mentioned in above paragraph 6.1, namely to improve livestock and meat production by controlling the environment of the pigs, especially by achieving optimum air and temperature conditions. None of these exhibits, however, deals with the problem of simplifying the method and the construction of an apparatus as they are known e.g. from GB-A-932 189, nor gives any hint to solve this problem by providing a blower or equivalent which creates intentionally unpleasant conditions for the piglets under the dam by blowing air thereunder.

7.1.2. Exhibits F (page 919, left column, lines 18 and 19) and G2 (page 724, right column, lines 45 to 49) mention the problem of preventing dams from crushing their young. According to the disclosure of these documents the pens are provided with guard rails and with infra-red lamps in the creeps. The skilled person, therefore, learns from Exhibit F and Exhibit Exhibit G2 to restrict the movement of the dams and to create pleasant conditions for the piglets by ensuring adequate temperatures in places away from the dams. This teaching is, however, already generally known and indicated in the description of the contested patent: EP-B-0 062 065, column 1, lines 21 to 31.

7.2. The other documents cited in the patent specification as well as during the opposition procedure, to which the Appellant did not refer during the proceedings before the Board of Appeal, give likewise no hint of the subject-matter of the independent claims. Their teachings could, therefore, neither per se nor in combination with the teachings of the documents discussed in the foregoing paragraphs lead the skilled person to the method and apparatus according to Claim 1 and Claim 3.

7.3. Consequently, the subject-matter of the independent claims involves an inventive step within the meaning of Article 56 EPC.

8. EP-B-0 062 065, column 2, line 16 to column 3, line 26 in combination with Figure 1 and 2, discloses the invention as claimed, in such terms, that the solution of the technical problem underlying the invention can be understood and carried out by a person skilled in the art.

The conditions of the environment preferred by dams and piglets are well known (cf. e.g Exhibits B, C and E, EP-B-0 062 065, column 1, lines 10 to 31) to the person skilled in the art. These conditions depend on the housing, the climatic zone, the season and the breed.

However, it does not matter whether there is mentioned in the description more detailed information having regard to temperature, ventilation, heating arrangement and the like, or in Claim 1 and Claim 3 a feature concerning the direction of the air-stream. The person skilled in the art does not need more detailed information because it is well within the scope of his knowledge to choose always the adequate conditions dependent on the specific situations. Further, an independent claim should state only the essential features of an invention (cf. Rule 29(3) EPC), but not prescribe down to the smallest detail to the person skilled in the art what he should do to find the most suitable solution.

The invention is disclosed in a manner sufficiently clear and complete which allows the person skilled in the art to carry out the invention.

The respective comments of the Appellant in his Statement of Grounds and in his letter of 14 October 1988, therefore, cannot support his objections.

9. Hence, the patent can be maintained with the independent Claims 1 and 3 in the wording as amended.

10. Claim 2 and Claims 4 to 8 concern particular embodiments of the method according to Claim 1 and of the apparatus according to Claim 3 and thus are not open to objection.