Swiss Patent Act 2027: what actually changes

What changes for a Swiss national application on 1 January 2027?

Four things, each of which touches a different part of portfolio administration: a search for documents relevant to novelty and inventive step becomes mandatory and subject to a fee, with the resulting search report published; applicants may request a full substantive examination including novelty and inventive step, which the current Swiss national procedure does not include; annual maintenance fees fall due from the third year instead of the fourth; and applications may be filed in English without translation into a Swiss national language.

Taken separately, none of these is exotic — each has a counterpart in procedures your team already runs elsewhere. Taken together, they change what a Swiss national filing is. The national route has been the light, fast, comparatively cheap way to hold a Swiss right; from 2027 it acquires a search everyone can read and an examination you can elect. That is a different instrument, and it deserves a fresh decision rather than an inherited default.

Why does a published search report matter more than the search fee?

Because the fee is a line item and the publication is a disclosure. A search report identifying documents relevant to novelty and inventive step, once published, is readable by competitors, licensees, opponents in parallel proceedings elsewhere, and anyone conducting due diligence on the family. The cost of the search is knowable and can be budgeted; the consequences of third parties reading a citation list attached to your Swiss filing are strategic and case-specific.

For most portfolios this is manageable and arguably welcome: an early, public read on the prior art improves the quality of downstream decisions and makes valuation conversations shorter. But it removes an option that some filers have relied on, namely holding a Swiss right whose confrontation with the prior art has never been recorded in a public file. If any part of your portfolio depends on that quietness — defensive filings, filings held for negotiating weight, filings whose claims you would rather not see measured against citations in public — that dependency should be identified now rather than discovered in 2027.

A second-order point worth flagging to your litigation colleagues: a published citation list is a document that exists and can be put in front of a court or a counterparty. What weight it carries is a separate question, and one we address in the limits section below.

What does an optional substantive examination do to strategy?

It converts a procedural given into a choice you must make case by case, and choices cost management time. Where today the Swiss national procedure does not include a full substantive examination on novelty and inventive step, from 2027 an applicant may request one. Each Swiss filing therefore acquires a decision point: request examination, or not.

The considerations are familiar even if the Swiss framing is new. An examined right is generally easier to license, easier to enforce in commercial negotiation, and easier to explain to an acquirer’s diligence team. An unexamined right is cheaper and faster to obtain and does not force early narrowing of claims. Which side of that trade you want depends on whether a given family is a commercial asset, a freedom-to-operate placeholder, or a bargaining chip.

What you should not do is set a blanket policy in the abstract. The sensible preparation during 2026 is to define the criteria — revenue exposure, competitor density, expected enforcement, licensing plans — and to tag each family against them, so that in 2027 the decision is an application of an agreed rule rather than an ad hoc discussion each time.

How much does the earlier annuity actually cost you?

Annual maintenance fees become due from the third year rather than the fourth. In cash terms that is one additional year of annuity across the maintained Swiss stock, arriving earlier in each patent’s life — before, in many families, the commercial signal you normally use to decide whether to keep paying has arrived.

The budgetary effect is easy to model once you know the amounts. The behavioural effect is the more interesting one: an earlier first maintenance decision pulls forward the pruning conversation. Portfolios that habitually carry marginal Swiss cases to year four “because it costs nothing yet” will now meet that question a year sooner. Treat this as an opportunity to align the Swiss pruning cycle with your existing global review, rather than as an isolated fee change to be absorbed silently by the renewals provider.

Does English-language filing simplify anything real?

Yes, though modestly and mostly in workflow terms: applications may be filed in English without translation into a Swiss national language. For groups whose drafting is done in English — which is most of them — this removes a step, a cost and a source of translation-induced discrepancy between the Swiss text and the parent text.

The practical benefit is largest where the Swiss filing is one member of a multi-jurisdiction family drafted centrally. It is smallest where local-language prosecution is already embedded in your provider relationships. What our source does not address is what happens later in the life of an English-language file — whether and when translations are required for any subsequent step. That is one of several points to verify against the revised Ordinance before you rewrite your filing instructions.

What does this development not settle?

A good deal, and the gaps are the sort that determine whether a strategy works. The practitioner note this article is based on is not the statutory text and not the revised Ordinance. It does not give the fee amounts for the search or the examination request, so the budget you build in 2026 will be a placeholder until the fee schedule is confirmed. It does not give the precise wording or deadlines of the transitional provisions, which is the single most consequential gap for anyone contemplating a “file before the cut-over” plan. It does not describe how the Institute will handle applications filed close to 1 January 2027 — the practical question of what happens to a file that is pending but young when the new regime begins.

It is also silent on the scope of any opposition or appeal route following a substantive examination, on whether an unexamined right of the incremental-invention type survives in any residual form, and on how Swiss courts will treat examined as against unexamined patents in nullity proceedings. That last point matters for the strategic weight of the examination election: the commercial intuition that an examined patent is a stronger patent is an intuition, not a settled proposition of Swiss law, and nothing in the material before us establishes it.

So: the four changes are firm. The mechanics around them are not, and any plan that turns on a specific date, a specific fee or a specific transitional entitlement is a hypothesis until you have checked it against the Federal Council’s entry-into-force decision and the revised Ordinance.

What should be decided during 2026?

Start with an inventory. List every pending Swiss national application and every open priority window with a Swiss component, with its filing date, its expected commercial role, and whether it is a candidate for divisional activity. That list is the substrate for every subsequent decision, and building it is work you can do now without waiting for the Ordinance.

Against that list, take four decisions. First, which cases — if any — you want on file before the change, recognising that the transitional mechanics must be confirmed before you rely on timing alone. Second, your examination-election criteria, so that 2027 filings are routed automatically. Third, a revised budget line covering the search fee, the possible examination fee and the earlier third-year annuity, with the amounts marked as provisional. Fourth, a route review: for each significant family, whether the Swiss national filing or the European route is the better vehicle once the national procedure includes a mandatory, published, fee-bearing search and an examination option.

What is the first step?

Commission the inventory this quarter and diarise a verification checkpoint against the entry-into-force decision and the revised Ordinance before any “file now” instruction leaves your desk. The four substantive changes are known; the deadlines, amounts and transitional entitlements that would make a pre-2027 filing programme worth running are not, and a programme built on assumed transitional rules is worse than no programme at all. Inventory first, verify second, instruct third.