Louise Floor Frellsen

Patent Attorney

T: +45 33 19 34 73

M: +45 27 74 34 73



Ph.D., Institute for Photonics, Technical University of Denmark (DTU), 2016
MSc., Physics and Nanotechnology Technical University of Denmark (DTU), 2013
B.Sc., Physics and Nanotechnology Technical University of Denmark (DTU), 2011


Louise advices on all patent matter related to Physics. It can be anything from mechanical systems to integrated electronics and she can also provide counsel on software questions. Her educational specialisation is anything related to light, lasers and the quantum effects of photons but she also has plenty of experience with classical mechanics from motors to wardrobe modules.

Louise feels privileged to learn about her clients’ exciting ideas and solutions for all sorts of challenges. Since she began working as a patent attorney with Chas. Hude in January 2019, Louise has gotten experience with application writing, examination proceedings, opposition proceedings and patent strategy. Working with patents have given her the chance to delve into various branches of physics rather than having to specialise in a specific field. Louise elaborates (in Danish) on her enthusiasm for working with patents here on this site and on her blog Patentkontoret on the website of the magazine Ingeniøren.

Louise has a degree in civil engineering doing physics and nanotechnology from the Technical University of Denmark (DTU). During her bachelors and masters, she obtained a broad foundation as she attempted to get to learn about every corner of physics. During her Ph.D. at DTU Photonics she specialised in optics and photonics. Her work was centred around photonics integrated circuits and she did both systems design and production in the local cleanroom facilities. She also got a chance to look into a form of machine learning namely topology optimisation.

After her Ph.D. she continued working with research as she joined the quantum optics group at DTU Physics as a postdoc. Here she investigated the interactions of quantum states and magnetic fields. This postdoc was funded by the Danish Innovation Foundation. It was through this project Louise learned about the importance of IP-protection and its role for start-ups.

Louise has experience doing research in the private sector as she did an external stay at the IBM T. J. Watson Research Center in New York where she did further work on photonics integrated circuits.