NEW YORK, April 23 – Mass spectrometer developer Bruker Daltonics said Monday that the United States District Court of the District of Massachusetts has allowed its summary judgment motion of non-infringement of a Thermo Finnigan patent.

Thermo Finnigan had previously sued Bruker for infringing on its patent for its ion trap mass spectrometry, and more specifically on its mass selective instability scan. Bruker argued that its esquire ion trap mass spectrometers uses a non-linear resonance ejection scan for unsurpassed resolution, speed and sensitivity.