Google Scholar Patent US5945058 to avoid issues with the USPTO image display.

You could note one of the two inventors is also listed as the patent practitioner prosecuting the application. One wonders if Formlabs might depose the inventors as a result.

From the Complaint (70 KB, PDF) we see at least claims 1 and 23 are specified as being infringed.

1. A method of producing a three-dimensional object from a plurality of adhered laminae formed from a material capable of selective physical transformation upon exposure to prescribed stimulation, comprising:

supply data representing the object to be formed; forming a layer of material over any previously formed adjacent lamina;

selectively exposing the layer of the material to prescribed stimulation in accordance with the data to form a next lamina of the object and to adhere said next lamina to any previously formed adjacent lamina;

repeating forming the layer and exposing the layer a plurality of times to form the three-dimensional object; automated processing of the data to identify which laminae are identified with a desired geometric feature; and

wherein forming, for at least some layers, comprises utilization of a first recoating style when the adjacent lamina includes the desired geometric feature and comprises utilization of a second recoating style when the adjacent lamina does not include the desired geometric feature.

23. The method of claim 1, wherein the processing of the data is performed by a computer.

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