International Women’s Day 2021: Q&A with Justyna Strzeszynska, founder & CEO of Joii

No items found.
​
March 8, 2021

This year, the International Women’s Day theme is ‘choose to challenge’ with a focus on challenging change to create a gender equal world.

The day marks a call to action for accelerating women’s equality, celebrating women’s achievements and raising awareness against bias. Throughout the year, we have observed EIP clients who are committed to improving gender equality and today we are celebrating them.

Meet Justyna Strzeszynska

Justyna is the founder and CEO of Joii, the period care company that develops smart solutions and familiar products filled with patented technology. Founded in 2019, the company will launch its products soon.

Prior to starting Joii, Justyna founded Genius Ventures, an angel investment network investing in alternative energy projects.

Hi Justyna. Could you tell us a about your background and what made you want to start Joii?

Hi EIP. My background is in investments, marketing and research. Prior to starting Joii, I founded Genius Ventures, an angel investment network investing in alternative energy projects.

In contrast, my entrepreneurial journey with Joii is actually quite personal. It started out with a more personal need to find better period care solutions. After years of searching, it was apparent that this category lacked the development and innovation it deserved to really cater to every individual need. The category seemed to be full of over promises, over marketing and now, superficially sustainable organic cotton brands. I felt a need to bring real innovation and honest sustainability to this category.

Joii Lab was created initially to research and strategise better solutions but in fact resulted in multiple patent applications and a desire to bring these advancements to market.

What has your journey been like as a female entrepreneur, and do you feel your gender has been a barrier or a positive thing?

I started working on Joii at the beginning of the major women empowerment movements in 2018, therefore I felt incredibly supported not only by my closest friends but also by different communities. Currently there are many varying accelerators and programmes for female entrepreneurs. However, in my opinion, it is still hard for women to be accepted by all gender programmes as the general perception is that many female led businesses are mainly purpose driven, not commercially driven.

One of the reasons I started my business was to be able to work on my terms and my terms have a lot to do with my feminine side. I wanted to bring a real, tangible improvement to people’s lives. I also wanted to implement the ‘no asshole rule’ and by no means is being an asshole exclusive to men. I wanted my workplace to be toxic-free.

Do you think there are enough female entrepreneurs and investors? If not, what is needed to encourage more women to venture into business?

There are definitely not enough females on both sides of the table. Alison Rose, CEO of NatWest Group, Review of Female Entrepreneurship found that only 13% of senior people on UK investment teams are women, and almost half of investment teams have no women at all. Furthermore, less than 1% of UK venture funding goes to all-female teams.

However this is changing and any aspiring female entrepreneur should know that there is plenty of help and advice out there. I think it is important to say that the entrepreneurial journey starts with you, from following your passion to wanting to change or improve something.

You have to want it enough to keep going and not be discouraged, because there will be many challenges along the road. I think normalising those challenges, normalising failures is extremely important, as there is no entrepreneur who hasn’t failed at some point or hasn’t been told ‘no’ or ‘that’s not going to work’. Personally, I love to read these inspiring stories and watch people coming out of these situations much stronger.

Finally, in celebration of International Women’s Day, is there any advice you would give to aspiring female entrepreneurs?

In the UK and elsewhere there are many networking groups and communities, so if you see a problem and you can think of a solution, you may have an idea for a business. You should sign up to a few of them, surround yourself with other entrepreneurs, listen to their inspiring stories, good and bad ones and see for yourself if this is something you want to pursue. At first this could be just your side hustle.

My advice - start small and eventually you can work on it full time. Second thing is, don’t listen to everyone, as there will be plenty of people discouraging you to do it, people not understanding your vision etc., listen to people who have done it themselves and have actual advice to offer.

At EIP, we are committed to diversity and inclusion. We believe in equal opportunity in all areas and we are proud that diversity is a core part of our culture.

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
Quantum IP Strategy: Own control Points, Not Patent Counts
14 October 2026
In quantum, the strongest portfolios will not be the biggest. Stuart Malcolm sets out six moves for owning the control points the market cannot route around, and the questions investors will ask.
#
Consulting
​
Targeted, Not Transformative: The UKIPO’s Considered Course on SEPs
13 October 2026
Andrew Sharples analyses the UKIPO's response to its SEP consultation, exploring proposed changes to FRAND dispute resolution, SEP transparency and licensing guidance, and what they mean for SEP holders and implementers.
#
Consulting
​
Chinese Companies in European Patent Litigation
30 September 2026
Chinese companies are becoming increasingly active in European patent litigation, both as defendants and as patent owners enforcing their own rights. This article examines the growing role of Europe and the Unified Patent Court (UPC) in global patent disputes, highlighting key cases involving Chinese businesses and the strategic opportunities and risks that come with operating in European markets. It is the first in a series exploring the practical implications of European patent enforcement for Chinese companies.
#
Patenting
​
How to mitigate prior art traps for follow-on pharma patents
27 August 2026
Follow-on patents are increasingly important for pharmaceutical innovators. Learn how new EMA clinical trial disclosure rules create prior art risks and discover practical strategies to protect pharmaceutical IP and maximise patent value.
#
Consulting
​
Chinese companies and the UPC: from enforcement targets to strategic users
13 August 2026
Chinese companies are playing an increasingly significant role in UPC litigation, accounting for around 38% of infringement actions in 2025. While many remain defendants, a growing number are actively using the Unified Patent Court to enforce their own patent rights across Europe. The trend highlights the UPC's rising importance for Chinese businesses operating in sectors such as telecommunications, semiconductors, medical devices and renewable energy, and signals a shift in global patent enforcement strategy.
#
Patenting
​
Evaluating the environmental impact of patent AI.
31 July 2026
AI's environmental impact is rarely out of the headlines, but how does it compare to the benefits it delivers in practice? In this article, Laurence Brown examines the energy use of AI-assisted patent drafting, comparing it with traditional drafting workflows. While measuring AI's true environmental footprint is far from straightforward, the analysis suggests that AI-assisted patent drafting may already be more energy efficient, while delivering significant productivity gains for patent professionals.
#
Patenting
​
UPC appeals after three years: Early indications on appeal success rates
15 July 2026
Three years into the UPC, appeal overturn rates sit at 56% for both substantive and preliminary injunction cases, with Kodak v Fujifilm among the rulings reshaping outcomes on appeal.
#
Litigation
​
The UPC After Three Years: From Experiment to Enforcement Forum
15 July 2026
1,282 cases filed at the UPC in three years: infringement actions have surged while revocation filings stayed flat, easing fears the Court would become a European patent graveyard.
#
Litigation
​
Podcast: Building an AI-Native Law Firm
26 June 2026
On the Technically Legal podcast, EIP partner Laurence Brown discusses how Visser AI is redesigning patent workflows, letting the firm offer fixed fees without trading away speed or quality.
#
Patenting
​
Choosing your SEP battleground: UPC, Germany or UK?
07 June 2026
Choosing the right venue for SEP litigation can significantly influence the outcome of FRAND disputes. This article compares the UPC, German and UK courts, examining their approaches to injunctions, FRAND defences, rate-setting and enforcement. It highlights the strategic advantages of each jurisdiction and explains why many SEP owners are increasingly turning to the UK and UPC as part of their European enforcement strategy.
#
Litigation
​
Synthetic Lethality & AI: IP Strategy in Oncology
26 May 2026
This article explores the resurgence of synthetic lethality in precision oncology, highlighting how AI and machine learning are accelerating the discovery of new therapeutic targets. It also examines growing clinical activity, investment, and the evolving intellectual property challenges shaping this emerging field.
#
Consulting
​
Inside the Visser AI Launch Party
20 May 2026
EIP has officially launched Visser AI®, our hybrid intelligence service for patent drafting and prosecution. Watch the launch film from our event at The Boundary in Shoreditch, and discover how our team of European and US patent attorneys — working with the Patently AI platform , delivers faster, lower-cost work at the EPO, USPTO and beyond.
#
Consulting
​
Protecting Your Startup: Five Intellectual Property Mistakes to Avoid
20 May 2026
Early‑stage startups often focus on product development and fundraising, but overlooking intellectual property (IP) can seriously damage long‑term value. This article explores five common IP mistakes startups make, with a particular focus on patents. It covers the risks of filing patents without professional advice, making public disclosures too early, failing to put enforceable contracts in place with third parties, misunderstanding what patent rights actually provide, and neglecting to develop a clear IP strategy. By highlighting these pitfalls and offering practical guidance, the article helps startups protect their innovations, strengthen their commercial position, and improve their prospects with investors.
#
Consulting
​
Technology, Patents, and Sport
13 May 2026
VAR, goal-line tech, AI 3D player avatars, wearable trackers, the technology reshaping the 2026 World Cup and elite sport rests on a patent system that makes the R&D investment behind it worth taking.
#
Patenting
​
Patents or Trade Secrets? When to Patent in Deep Tech Innovation
11 May 2026
Deep tech companies face unique IP challenges due to long development cycles, high upfront investment, and complex technologies that combine products and processes. This article explores when patents, trade secrets, or a combination of both offer the strongest protection. It explains how factors such as detectability, reverse engineering risk, disclosure to third parties, and employee mobility should shape IP strategy decisions. While patents are often best suited to externally visible or licensable technologies, trade secrets can be highly effective for internal processes and know‑how that deliver performance or cost advantages.
#
Patenting
​