The re-filing also adds Hewlett-Packard Development Company, a subsidiary of HP, as a claimant in the case.
HP is also taking similar steps to introduce Taiwan-based APM as a respondent in a parallel investigation regarding the patent claims before the US International Trade Commission (ITC).
The initial case, Hewlett Packard v MicroJet Technology, was filed on 5 March (click here to read our coverage of the story).
The Federal District court and ITC complaints named the following as defendants: Mipo Technology Limited of Hong Kong, Mipo Science & Technology Co Ltd of China, Mextec Group Inc D/B/A Mipo America Ltd of Florida, Sinotime Technologies Inc D/B/A All Colors of Florida, and Ptc Holdings Limited of Hong Kong.
HP will soon be taking similar steps to introduce APM as a defendant in parallel litigation on the patent claims before the ITC.
The Recycler is yet to hear back for a comment from APM.