MacLachlan & Donaldson

One of Ireland’s most experienced Intellectual Property firms.

Over 200 Years of Combined Experience

MacLachlan & Donaldson is one of Ireland’s leading Intellectual Property firms, having zealously fought for our clients’ rights for more than 50 years. Our highly trained staff of attorneys, and our extensive resources, are dedicated to protecting your IP interests. With attorneys in Dublin and Belfast, we are an all-Ireland firm who can represent your rights in Ireland, the United Kingdom and the European Union, as well as multiple territories across the globe.

We are among the top 250 firms across all 27 countries in the European Union for the filing of EU trade mark applications. The 2017 edition of World Trademark Review 1000 states that since its establishment in 1967, “MacLachlan & Donaldson has burned bright in Ireland’s IP firmament. Treasured for its stellar trademark prosecution and consultancy output, it expertly manages the international portfolios of some of the world’s largest companies”.

Speak with an Expert Today.

Request A Call Back

Whether you have invented a product, crafted a design, or created a trade mark, intellectual property is a valuable asset to any business. We work diligently with all our clients to ensure that their intellectual property is protected and delivers tangible gains for their businesses.

Our clients include some of the world’s most prestigious and well known companies, as well as many individual innovators and small enterprises, granting our team experience protecting interests both great and small.

Many of our clients work at the cutting edge of science and technology, while others are market leaders in retail, food and service sectors. With the extensive expertise we have working in different areas, and the breadth of qualifications brought to the table by our attorneys, we can devise a tailored strategy for our clients, no matter their needs.

Our individually tailored advice is rooted in our relationships with our clients, and a deep understanding of their businesses and market needs.

For clients with IP interests that range beyond Europe, we have a worldwide network of prestigious IP firms with whom we work, ensuring that we can protect your interests in any corner of the globe.

Free IP Consultation

If you would like to arrange a consultation with one of our IP experts please contact us below:

Latest News

Protect your trade marks, protect your brand, protect your business!

I enjoy baked beans; on toast, on a baked potato with cheese, with an Ulster fry (I know, sacrilege), in a toastie, and in a myriad of other ways.  But

5 steps to identifying your Intellectual Property

We have been running a series of webinars on the basics of Intellectual Property ('IP') over the past three months here at M&D, and we will round out the series

Sky v Skykick – the most important trade mark case in EU in recent years

The Court of Justice of the European Union (‘CJEU’) handed down its eagerly awaited judgement of Case C-371/18 Sky plc et. -v- SkyKick UK Ltd et., on 29th January 2020. In

Trade Mark Webinar

The What, Where, When, Why and How of Trade Marks – Lunchtime Webinar

We are delighted to announce the next in our lunchtime webinar series.  Join our experienced trade mark attorneys Cherrie Stewart and Carla MacLachlan in discussing the basics of trade mark

Trade Mark protection during tough economic times

The coronavirus pandemic has had a great impact on the economy and businesses around the world bringing budget discussions to the forefront. In such tough times, one must not neglect

Intellectual Property Lunchtime Webinar Series

MacLachlan & Donaldson, together with sister firm Ansons, are delighted to present a series of lunchtime webinars introducing the basics of Intellectual Property. Our experience patent and trademark attorneys will

Trademarking a pandemic

Since February, several people have rushed to register trade marks for ‘COVID’ and ‘CORONA’ internationally. In fact, it is not unusual for global events to trigger trade mark applications. Applicants

Intellectual property and climate change

Intellectual Property (IP) rights and the environment have been put in the limelight, being the chosen topic for this year’s World IP Day. The theme this year is ‘innovate for 

Trade marks and environmental sustainability

In celebration of World IP Day 2020, 26th April, M&D are focusing our news posts this week on green and sustainable topics in support of the theme "Innovate for a

Trade mark use in text

At M&D and Ansons, we advise clients on a variety of issues regarding the use of registered trade marks. One of the issues that we discuss frequently is the use

Misleading invoice alert regarding fake EUIPO decisions

MacLachlan & Donaldson would like to alert all clients and associates to the latest alert from the EUIPO. There is currently a new misleading invoice in circulation, which takes the

Trademark protection in a time of crisis and counterfeiting

As the COVID-19 pandemic continues to dominate, several consumers have resorted to bulk-buying everyday products to avoid taking frequent trips to the supermarket. Others have chosen to do their shopping

Testimonials

MacLachlan & Donaldson have provided an excellent service to Trinity College Dublin over a very long period of time. The quality and responsiveness of their service is second to none.

Trinity College Dublin

Our firm has been blessed to enjoy the highest quality legal service from MacLachlan & Donaldson for two decades. The dedication to clients, responsiveness, integrity and personal touch of their legal team is extraordinary!

GL Tool and Manufacturing Co., Inc.

MacLachlan & Donaldson are our legal advisors on patent and trade mark applications and registrations for the last 20 years. This company is highly professional, efficient, objective, focused and has skilled teams working on all legal issues.

Robert A. Merry & Co. Limited

During the time that our company has been working with MacLachlan & Donaldson, their trademark expertise has been stellar. They are quick to respond and their knowledge of intellectual property law is superior, which is crucial since we are an international company and require local expertise. Our contact person at the firm provides timely advice, organized reminders and updates, and clear, concise billing. When dealing with a number of outside law firms, we appreciate MacLachlan & Donaldson’s impeccable service.

NSE Products, Inc.

The expertise, advice and proficiency of service from MacLachlan & Donaldson is second to none. These pillars combined with trust is why we choose MacLachlan & Donaldson as our preferred business partners.

Connacht Gold Co-Operative Society Limited

Campbell Bewley Group has been a client of MacLachlan & Donaldson for many years which is a testament to the very professional advice and service we continue to receive.

Campbell Bewley Group Limited

As the largest Irish supplier of sports clothing in Ireland, protecting our Intellectual Property is of paramount importance to us. Over the years MacLachlan & Donaldson have been to the forefront in our efforts to protect our IP and offer an excellent service and are always willing to engage with us and provide us with peace of mind.

O’Neills Irish International Sports Company Limited
See what our clients have to say about us