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Chemistry

The chemical sector ranges from manufacturers of base chemicals to pharmaceutical and food companies. It also includes materials based companies, like manufacturers of plastics, agrochemicals, ceramics, and metals or metal alloys, each with their very own characteristics. Base chemicals are more sensitive to economic cycles whereas the pharmaceutical and food sectors operate in a complex regulatory legal framework.  Working with Intellectual Property in the Chemistry sector requires knowledge of the business. With our technical skills and business sense we can assist you in maximizing the value of your IP.

Sector insight

We speak the language of the sector. We are aware of the commercial interests that are at stake. We can provide any service to make sure that the client's IP is protected in the best possible manner. Whether it concerns drafting of a patent application or instituting opposition proceedings. Whether it concerns a single patent or an extensive patent portfolio. For cross-border proceedings, we can work closely together with renowned patent professionals from all over the world.

Many backgrounds

Our patent attorneys have many backgrounds. We are familiar with process engineering, organic or physical chemistry. Furthermore we have patent attorneys with experience in IP departments in industry, ranging from small life science start-ups to large pharmaceutical or food companies.

Full-service partner

We provide all IP services: drafting and prosecuting patent applications all over the world. We can also assist you in defending or attacking patents and in infringement suits in contentious (opposition or litigation) proceedings. Other fields of activity concern Freedom To Operate, IP audits, Trademarks and Supplementary Protection Certificates for pharmaceuticals and agrochemicals.

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Henri van Kalkeren

Henri van Kalkeren

  • European and Dutch Patent Attorney, European Patent Litigator
  • Partner
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News

Column: Can you patent something illegal?

Can an invention whose manufacture, sale or use is illegal still qualify for patent protection? It is a question that surprises many people, because the answer is less straightforward than you might expect. Under European patent law, illegality does not automatically preclude an invention from being patentable.Continue reading

G 1/25: the description must be adapted only where an inconsistency leads to non-compliance with the EPC

In G 1/25 (Enlarged Board of Appeal, 3 September 2026), the Enlarged Board of Appeal of the European Patent Office (EPO) decided whether, and on what legal basis, the description must be adapted when the claims are amended. The decision resolves a long-standing divergence in the case law of the Boards of Appeal and builds […]Continue reading

UPC clarifies lack of entitlement as a ground for revocation under Article 138(1)(e) EPC 

In UPC_CFI_523/2025, Wittenstein SE v Vestas Wind Systems A/S, the Court of First Instance, Central Division (Section Munich), decided on 2 September 2026 how lack of entitlement may operate as a ground for revocation under Article 138(1)(e) EPC. The Court held that it is not sufficient for a claimant to establish rights to only part […]Continue reading

Events

2026 AIPPI World Congress

Congress Center Hamburg, Congressplatz, Hamburg, Germany

The annual AIPPI World Congress, held in September or October, is the only time of year when members from around the world come together to discuss current issues in the field of intellectual property.

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