Jawbone is coming for Fitbit, guns blazing. The company just filed a lawsuit alleging that Fitbit products are infringing on multiple Jawbone patents including a method for "reporting an individual's physiological or contextual status" and a "wellness application using data from a data-capable band." Jawbone is seeking damages and an injunction to halt the continued sales of Fitbit products. Jawbone's attacks couldn't be more precisely timed. Fitbit is getting ready for an initial public offering (IPO). No matter how things take a turn int he courtroom, the legal heat will certainly have some impact on Fitbit's IPO.