European Patent Attorneys & Irish Registered Patent AgentsWeldon O'Brien is a patent practice, previously trading as John A. O Brien & Associates, which was established by John O'Brien, Michael Weldon, and Michael Allen in 1997. We specialise in supporting technology companies and innovators to optimize their IP protection, particularly in the medical device, mechanical and electronic fields. We work on all aspects of building and protecting patent rights, which is a critical part of any companies IP portfolio. From advising on patentability and freedom to operate, drafting patent applications, prosecuting to grant, and maintaining all patent rights throughout their lifecycle.From the more established technology companies through to start-ups, Weldon O'Brien are passionate about building up IP protection for our clients.