Protecting Your Startup: Five Intellectual Property Mistakes to Avoid

​
May 20, 2026

Turning an idea into a product, and building a company to commercialise that product is not easy. Prototyping, raising funds and engaging with third party manufacturers can be complex, expensive and time-consuming. These concerns can often lead to the startup overlooking a crucial aspect for its success in the long term: Intellectual Property.

In this article, we will talk about five IP topics, focusing on patent rights, that we believe will be useful to early-stage startups to avoid making common mistakes which can damage their prospects in the medium to long term.

1. Desire to file a patent quickly at low cost without the help of a professional representative

Saving costs by asking your lead engineer to draft a patent application may be tempting, especially as using AI appears to make that task simpler and more streamlined. However, this can be a false economy. Several criteria need to be satisfied when you file an application in order to obtain a valid and worthwhile patent, and more often than not, if they have not been considered at the filing stage, they are difficult to remedy later. For example:

• adding new subject matter to a patent application can have negative repercussions on the validity of the patent application at later stages.

• using AI as your “Patent Attorney” may result in an accidental disclosure to the public. Always check how your data is used by the AI service you use before you click send. Nevertheless, AI can be a powerful tool in patent drafting and prosecution, provided that a duty of confidentiality is in place, and that the output of an AI tool is carefully reviewed by a professional. For more information, see Visser AI’s hybrid intelligence service.

• many jurisdictions are based on a first to file system (rather than first to invent). Filing a patent application quickly may reduce the likelihood of new documents being prejudicial to the patent’s validity, or accidental disclosure. However, it is desirable for a patent application to be drafted well with a commercially useful scope of protection, keeping in mind the applicable rules relating to patent validity.

• It’s important to ensure that the entity filing the application has the right to be granted a patent. In practice, this means ensuring that title to the rights in the invention has passed from the inventor to the startup; fixing this later can be expensive and difficult, especially if the inventor has disappeared or is no longer friendly. And difficulties in showing you own the rights may affect your ability to attract funding.

2. Public disclosures

Disclosing an invention without having confidentiality obligations in place (like at a conference) can affect the validity of your patent application. In the UK and elsewhere, this can result in the patent rights being lost. Before disclosing your invention, even to a close friend:

• ensure the recipient is under a duty of confidentiality and, if not, set up a confidentiality agreement; or

• file a patent application.

However,  all hope is not lost if something is accidentally disclosed. For example, you may still be able to get patent protection in the US by using the 12-months’ grace period from the date of first disclosure by the inventor.

Also keep in mind that most jurisdictions have provisions to protect rights if public disclosure was made in breach of confidence. For example, a disgruntled ex-employee may disclose details relating to an invention before a patent application is filed. In that case, it may still be possible to file a patent application without the disclosure being prejudicial to validity provided it is filed within a certain amount of time from the date of the disclosure (typically 6 months).

3. Failing to set up enforceable contracts with third parties

Relying on a manufacturer overseas may be a viable solution for reducing the cost of getting your product to market. However, working with third parties often come with risks: for example, a manufacturer may start making your product and selling it in another country, becoming a competitor.

• Make sure you have a contract with the manufacturer which can be enforced in the manufacturer’s own country. You may win an action before a Court in your own country, but find it is not useful to prevent further misuse of your IP.

• Set out IP ownership clauses, clear terms of use, and enforceable penalties for breach of contract.

Similar arguments apply to research collaborations with third parties. For example, it is important to establish what is background and foreground IP well in advance of the start of a research collaboration; otherwise, the ownership of the research IP may be difficult to settle.

4. Clarity in how to use a patent

A patent can be a valuable tool to prevent others from working the patented invention, but it does not give you the right to work the invention: it is only a right to stop other people from using the invention.

Owning patents can increase the value of your company, particularly in the eyes of an investor.

This can be advantageous during early-stage funding, since you may be able to raise more money, or retain a larger slice of your company.

Remember this applies for other forms of registered intellectual properties as well, such as registered designs and trademarks.

5. Having an IP strategy

Products change from iteration to iteration. Having a patent with a broad scope of protection is often desirable, but an excessive breadth of the patent’s claims may render the patent invalid from the perspective of novelty and/or inventiveness. On the other hand, a patent that is too narrow may have limited commercial use, as it may be easy for a competitor to design around the patent, or it may be difficult to assert the patent during an infringement action.

Even if you have a broad enough valid patent that is still relevant throughout the different iterations of your product, you may want to consider drafting an IP strategy, and conducting regular patent portfolio reviews in order to:

• file more patent applications (or register designs) as the product evolves to cover new features – having multiple patents directed to different key aspects of a product may help in asserting your rights at a more granular level;

• consider licensing IP: if you are not using the patent yourself, this may be a valuable source of income; and

• abandon obsolete patents to save money on renewal fees.

The Latest Thought Leadership pieces in the Content Hub

No items found.
Stay in the Know

The Patent Strategist

Get expert insights and the top patent stories delivered straight to your inbox.

Heading
This is some text inside of a div block.
This is some text inside of a div block.

Latest Insights

Showing 0 of 100
UPC Agreement Is Not EU Law, No Referrals to CJEU
01 September 2025
expert v. Seoul Viosys, UPC_CoA_380/2025 Order of 20 August 2025 (ORD_22147/2025)[1] This order from the UPC Court of Appeal clearly states that the Court of Justice of the EU cannot be asked to...
#
Litigation
​
Unconventional Service: igus v. Whale Technology
29 August 2025
UPC_CFI_318/2025, decision of 5 August 2025 (ORD_34299/2025)[1] In a default judgment issued by the Düsseldorf Local Division of the Unified Patent Court, Whale Technology (Shanghai) Co., Ltd.
#
Litigation
​
A Cloud of Uncertainty: Implications of G 1/23 for Software Companies
29 July 2025
On 2 July 2025, the Enlarged Board of Appeal of the European Patent Office (EPO) issued its landmark decision in case G 1/23 (Solar Cell Sealing Materials and Solar Cell Module), a ruling that has...
#
Consulting
​
Flawed consultation on Standard Essential Patents launched by UK Government
29 July 2025
Earlier this month, the UK Government unveiled its latest consultation on Standard Essential Patents, proposing some "practical steps" which they are considering to "create a more balanced system"...
#
Litigation
​
UPC refuses extension of deadline for review of seizure order after refusal of service
22 July 2025
Sichuan Yuanxing Rubber Co., Ltd. and China Council for the Promotion of International Trade, Automotive Sub Council Order of 14 July 2025 (ORD_26742/2025 [1]) This article follows up on the UPC...
#
Litigation
​
UPC grants ‘in absentia’ permanent injunction on agricultural tool
21 July 2025
Maschio Gaspardo S.p.A. v Spiridonakis Bros GP (UPC_CFI_513/2024 relating to EP1998604) Order of 25 June 2025 (ORD_17812/2025 [1]) This Decision from the Central Division of the Unified Patent Court...
#
Litigation
​
Applying Ocado, the UPC grants a R262 request to access CFI documents
09 July 2025
NJOY Netherlands B.V v Juul Labs International, Inc (UPC_CFI_309/2023) Order issued 9 June 2025 (ORD_27305/2025) [1] The Paris Central Division revoked Juul Lab's patent EP 3 498 115 B1 by decision...
#
Litigation
​
Unified Patent Court: The Impact of Brexit
26 June 2025
The Unified Patent Court (UPC) now has jurisdiction over 18 of the 27 EU states and advertises itself as an EU court but is there any prospect of the UK getting involved in the Unified Patent Court...
#
Consulting
​
Lionra Technologies Ltd. v Cisco Systems GmbH and Cisco Systems, Inc.
25 June 2025
UPC_CFI_58/2024 Following a decision, a successful party has one month to apply for a costs decision (Rule 151). In the relevant case, the main decision (dated 19 February 2025) stated that the...
#
Litigation
​
Provisional Injunction Denied for Small Molecule Kinase Inhibitor
19 June 2025
Zentiva Portugal, LDA v. Boehringer Ingelheim International GMBH (UPC_CFI_41/2025 relating to EP1830843) Court of First Instance Order dated 8 May 2025 ORD_18599/2025 [1] Summary The Application for...
#
Litigation
​
Avoiding Added Matter Pitfalls: Mastering Amendments Before the EPO
17 June 2025
"Added matter" objections are a common and often frustrating hurdle in European patent prosecution. The European Patent Office (EPO) takes a particularly strict stance on claim amendments, especially...
#
Patenting
​
The UPC two years on: Withdrawals of actions becoming prominent
09 June 2025
The Unified Patent Court has now been running for two years. To mark the occasion, we have looked at the cases and the decisions over the past two years, and share our thoughts on the current state...
#
Litigation
​
INTA 2026 Essentials: Where to stay, what to see and what to do
03 June 2025
Discover the INTA 2026 Essentials! This comprehensive guide will help you navigate your stay, showcasing the best accommodations, must-see attractions, and exciting activities to enjoy during your visit.
#
Patenting
​
Building a Resilient Quantum Patent Portfolio: Winning the Race to File First
29 May 2025
A key question for those working in a fast-paced and complex industry such as quantum technology is when to patent any technological developments.
#
Consulting
​
AI and Bitstreams at the Core of China’s Patent Update
28 May 2025
On April 30, 2025, the China National Intellectual Property Administration (CNIPA) released a draft amendment of the Patent Examination Guidelines (for public comment), proposing further revisions to...
#
Patenting
​