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A patent drawing Mannheim engineers commission is drawn twice over: once for a formalities examiner, and once for a judge who may read the same figure to decide whether a competitor is enjoined. Few cities make that second reading so likely. The Landgericht Mannheim has been one of Germany’s leading patent-infringement forums for two decades, and since June 2023 the city has also hosted a local division of the Unified Patent Court. Around those courts sits a Rhine-Neckar economy of engines, agricultural machinery, diagnostics and chemistry. Mannheim is where Carl Benz was granted DRP 37435 in 1886 for a vehicle powered by a gas engine — the drawing on that patent is still the city’s best argument for getting figures right.
Why patent drawing Mannheim filings answer to three rulebooks at once
A Mannheim invention rarely travels on one route. The German Patent and Trade Mark Office (Deutsches Patent- und Markenamt, DPMA) grants national patents and utility models. Germany has been a European Patent Convention state since the Convention entered into force, so most commercially serious cases are also prosecuted at the EPO. Add a PCT application for the US and Asian markets and one invention carries its figures through three formalities regimes before anyone argues about validity.
The regimes agree on most things, which is exactly what makes the gaps dangerous. Sheet size, margins, line weight, view numbering and reference-character height are broadly harmonised. What diverges is narrow: what colour is allowed, whether a photograph is acceptable, and how much text may sit inside a figure. Those are the divergences that produce a formalities objection months after filing, when the drawings have already been cited in the description and the claims.
For the DPMA specifically, the formal requirements for the application documents — drawings included — are set by the Patentverordnung, the German Patent Ordinance, rather than by the Patent Act itself. National filings are made in German, and while reference numerals travel across languages without difficulty, any word left inside a figure will not.
Where a Mannheim patent dispute is actually heard
Mannheim’s reputation rests on the patent chambers of the Landgericht Mannheim, which together with Munich and Düsseldorf handle the bulk of German patent-infringement litigation. Appeals from Mannheim go to the Oberlandesgericht Karlsruhe, not to Düsseldorf — a distinction that matters when you are reading case law to predict how a figure will be construed. Further appeals on points of law reach the Bundesgerichtshof, also seated in Karlsruhe, whose Tenth Civil Senate hears patent matters.
Validity is somewhere else entirely. German revocation actions and appeals from DPMA decisions go to the Bundespatentgericht, the Federal Patent Court, which sits in Munich — not in Mannheim and not in Karlsruhe. A Mannheim defendant attacking a patent is therefore litigating in two cities at once.
Since 1 June 2023 the Unified Patent Court has added a further forum. Germany hosts four UPC local divisions — Munich, Mannheim, Düsseldorf and Hamburg — and the Mannheim division draws the region’s automotive and engineering disputes. The UPC decides infringement and validity together, so the bifurcation habit below does not apply there.
Bifurcation, and why your figures get read by two different benches
German national litigation splits infringement from validity. The Landgericht Mannheim decides whether the accused product falls within the claim; it does not revoke the patent. The Bundespatentgericht decides validity on a slower clock. The interval between an infringement judgment and a validity ruling is the well-known injunction gap, and it is why a Mannheim injunction is commercially serious.
The drawing consequence is specific. In an infringement action the figures are read expansively, as support for what the claim covers. In the parallel nullity action the same figures are read as disclosure — what did this application actually teach on its filing date? A figure that is generous enough to capture an infringer and specific enough to survive an added-matter attack is not something you assemble after the fact.
That is also the practical reason to keep figures consistent across the national, European and UPC copies of a case. Where the same invention is enforced at the Landgericht and attacked at the Federal Patent Court, any drift between the drawing sets becomes an argument the other side did not have to construct.
The DPMA route and the Gebrauchsmuster, where drawings do more work
Germany keeps a second-tier right the EPC has no equivalent of: the Gebrauchsmuster, or utility model. It is registered without substantive examination, runs to a maximum of ten years rather than twenty, and can be branched off a pending patent application. Because nobody examines it before registration, the disclosure as filed is all the protection there is.
That makes the figures load-bearing. A utility model asserted in Mannheim will be met with a cancellation request, and its validity will be judged on what the drawings and description disclosed on day one. Thin or ambiguous figures that an examiner would have queried in a patent application simply go unchallenged into registration — and then fail when it matters.
Two further points catch foreign applicants. Utility model protection is not available for processes, so a method drawn as a flow diagram cannot be rescued that way. And the German-language requirement applies to the application documents, so any figure text has to be prepared in German rather than translated later.
What Mannheim’s industries actually need drawn
The Rhine-Neckar filing profile is unusually mechanical for a modern European region, and it shapes the drawing brief.
- Powertrain and commercial vehicles. Mannheim’s engine manufacturing runs back to Benz, and heavy-duty powertrain work still drives filings. These are sectional-view cases: cut planes, hatching that distinguishes materials, and assemblies that must read clearly at two-thirds reduction.
- Agricultural machinery. John Deere’s European manufacturing base in Mannheim generates large-assembly filings where exploded views and consistent reference numerals across twenty-plus figures matter more than artistry.
- Diagnostics and life sciences. Roche Diagnostics’ Mannheim site puts analyser hardware, consumables and assay workflows into the local filing mix — cases that mix mechanical figures with data plots and, occasionally, images no line drawing can replace.
- Chemicals. BASF’s Ludwigshafen complex sits directly across the Rhine. Chemical cases route formulae and process diagrams differently from mechanical ones, and getting that routing wrong is a formalities objection rather than a drafting preference.
- Enterprise software and automation. SAP at Walldorf and the region’s automation suppliers file flowchart-led cases where the figures carry the technical-character argument under the EPO’s established approach to computer-implemented inventions.
Colour, photographs and text inside a figure: two European changes to know
Two recent European developments change long-standing advice. First, the EPO began accepting colour drawings on 1 October 2025, ending the practice of converting everything to black and white before filing. Colour is now a genuine option for a European case — but the national and PCT copies of the same invention may still not accept it, so the monochrome master remains worth keeping.
Second, Rule 46 EPC — the old ‘form of drawings’ provision that a great deal of published guidance still cites — was deleted by decision CA/D 10/22 with effect from 1 February 2023. The EPO’s own page for the rule now reads simply as deleted. The presentation requirements sit in Rule 49 EPC and in the Guidelines for Examination, Part A, Chapter IX. Citing Rule 46 in a response in 2026 signals that the authority behind it was never checked.
Text inside figures remains the most common avoidable error on the international copy. PCT Rule 11.11 permits no text matter in drawings except a single word or words where absolutely indispensable, with a narrow allowance of short catchwords in flow sheet and circuit diagrams. German-language labels scattered through a figure will not survive that rule, and stripping them at the last minute is how reference numerals get orphaned.
How we work with Mannheim attorneys and in-house teams
Most of our Mannheim work arrives in one of two states: a disclosure from an engineering team that needs figures built from CAD or sketches, or an existing drawing set that has drawn an objection and needs correcting without introducing added matter. The second is the harder job, because Article 123(2) EPC leaves very little room to improve a figure after filing.
We prepare figures to DPMA, EPO and PCT standards in parallel rather than converting between them afterwards, and we deliver the brief description of the drawings and the reference-numeral table alongside the sheets so the description and figures are consistent from the first draft. Where a case is heading for the Landgericht or the Mannheim UPC local division, we will also flag figures that are doing too little to support the claim they are cited for.
For rights-holders assessing an estate before asserting it, this pairs naturally with our work on patent portfolio analysis in Mannheim; for defendants, with patent invalidation in Mannheim.
A patent drawing Mannheim checklist before the figures leave your desk
Run these seven checks before the sheets go to the DPMA, the EPO or a PCT receiving office. They take an afternoon and they prevent the objections that arrive a year later.
- Does every figure number appear in the brief description of the drawings, and vice versa?
- Is each reference numeral used for the same feature in every figure and in the description?
- Has figure text been reduced to indispensable words for the PCT copy, with the detail carried by numerals?
- For a DPMA filing, is any remaining figure text in German?
- Do the drawings survive a linear reduction to two-thirds with all details still distinguishable?
- If colour is used at the EPO, does a monochrome master exist for the offices that will not take it?
- If a Gebrauchsmuster is being branched off, do the figures disclose enough to survive a cancellation request unexamined?
IP Landscape & Resources in Mannheim
Key intellectual-property authorities and venues relevant to Mannheim:
- German Patent and Trade Mark Office (DPMA) — grants German national patents and registers utility models (Gebrauchsmuster)
- EPO Guidelines for Examination — the drawing and presentation requirements applied to European applications validated in Germany
- Unified Patent Court — hosts a local division in Mannheim hearing infringement and validity together
- WIPO — PCT — the international route German applicants use for the US and Asian markets
Request Patent Drawings for a Mannheim Filing
Request Patent Drawings for a Mannheim Filing
Send us the CAD files, sketches or the existing drawing set and tell us where the case is going — DPMA, EPO, PCT, or all three. We return figures prepared to each office’s requirements, with the brief description of the drawings and the reference-numeral table, and we confirm scope, cost and turnaround before any work begins.
Explore related PerspireIP services: Patent Drawing services · our Germany IP services hub · patent invalidation in Mannheim · patent portfolio analysis in Mannheim.
Frequently Asked Questions
Do drawings filed at the DPMA have to be in German?
The application documents for a German national filing are prepared in German, and that includes any text appearing in a figure. Drawings themselves are not translated, which is a good reason to carry detail in reference numerals rather than labels — numerals travel between the German, European and PCT copies of a case without rework.
Is Rule 46 EPC still the authority for the form of European drawings?
No. Rule 46 EPC was deleted by decision CA/D 10/22 with effect from 1 February 2023, and the EPO’s page for the rule now shows it simply as deleted. The presentation requirements for drawings are found in Rule 49 EPC and in the Guidelines for Examination, Part A, Chapter IX.
Can I file colour drawings for a case that will be enforced in Mannheim?
At the EPO, yes — colour drawings have been accepted since 1 October 2025. Whether the same figure can be filed in colour on the national or PCT copy of the invention is a separate question, so most applicants keep a monochrome master alongside the colour version rather than abandoning it.
Which court in Mannheim would hear an infringement claim?
The patent chambers of the Landgericht Mannheim hear national infringement actions, with appeals to the Oberlandesgericht Karlsruhe and, on points of law, to the Bundesgerichtshof in Karlsruhe. Since June 2023 a local division of the Unified Patent Court has also sat in Mannheim, deciding infringement and validity together.
Where is the validity of a German patent decided?
Not in Mannheim. National revocation actions and appeals from DPMA decisions go to the Bundespatentgericht, the Federal Patent Court, which sits in Munich. That separation from the infringement court is what German practitioners call bifurcation, and it produces the injunction gap.
Do utility model drawings need to be as careful as patent drawings?
More careful, in practice. A Gebrauchsmuster is registered without substantive examination, so nothing is queried before registration. When it is later asserted and met with a cancellation request, its validity is judged on what the drawings and description disclosed as filed — with no examiner’s objections having forced a clean-up first.