Intellectual Property and
Technology Law
18.03.2024

Modernization of the Swiss Patent System
The Swiss Parliament has adopted long-awaited changes to the Swiss Patent Act

The introduction of a mandatory search and a voluntary full examination make the Swiss patent system fit for the future.

After several years of preparatory work to modernize the Swiss patent system, on 15 March 2024 the National Council and the Council of States adopted the long-awaited amendments to the Federal Patent Act. A modernized Swiss patent system shall in particular increase the quality of Swiss patents, which is desirable for both the patent holders themselves and the public due to improved legal certainty.

Once the referendum period has expired, the Federal Council can bring the amendments to the Patent Act into force, which will probably be the case in 2025 at the earliest. Furthermore, analogous amendments to the implementing Patent Ordinance are still necessary, for which there will be a public consultation.

Some of the most important changes in practice are listed here:

- The previously voluntary official search by the Institute of Intellectual Property (IPI) will now be mandatory for all Swiss patent applications. This is intended to increase legal certainty for third parties. As before, the official search report will be published, usually together with the patent application.

- In future, within six months of publication of the official search report, the patent applicant or a third party can request an official full examination of the patent application, i.e. an examination for novelty and inventive step, as is already mandatory in most countries. Such a substantive examination was previously not possible in Switzerland. However, a third party requesting a full examination does not become a party to the examination proceedings. Furthermore, a request for full examination only becomes effective if the patent applicant has also filed a request for normal partial examination, i.e. if a grant of the application is actually intended by the applicant.

- In addition to the official languages German, French and Italian, Swiss patent applications can now also be examined and granted in English. This measure can save translation costs, for example if an applicant requires an English version of the application for further patent applications abroad anyway. It also eliminates the risk of translation errors.

- In future, affected third parties will be able to lodge an administrative appeal against the grant of a Swiss patent with the Federal Patent Court within a period of four months after publication of the grant of the patent. By default, such an appeal by third parties will have no suspensive effect, i.e. the patent concerned remains legally valid and enforceable in court during the appeal proceedings. Although an administrative appeal was already possible in the past, it was limited to formal and procedural violations of the law during the examination procedure. For fully examined Swiss patents, the new appeal procedure will in practice have a similar function as the opposition procedure before the European Patent Office has for European patents, although there will be differences in detail.

- The extension of the scope of protection after the grant of a Swiss patent or the Swiss part of a European patent will in future constitute a ground for nullity. If, for example, the patent claims are amended after the grant of a patent in administrative proceedings (e.g. in European opposition proceedings or in the new appeal proceedings before the Federal Patent Court), it will in future be possible to bring an action for revocation of the patent if these new patent claims cover a subject matter that was not covered by the patent as originally granted.

The additional workload for the IPI is expected to have an impact on patent fees. In particular, the amount of the official fee for full examination will be decisive in determining how many patent applicants will make use of the new option of full examination. According to the Federal Council, however, a relevant part of the additional costs will probably be covered by a slight increase in the annual maintenance fees.

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