Opinion ID: 211242
Heading Depth: 3
Heading Rank: 3

Heading: Structure Evidence

Text: 30 Next, LD relies on testimony regarding the structure of Vaughan's designs and their similarity to the '414 patent claims. Dorsch, Vaughan's chief engineer and its technical expert at trial, testified that the Vaughan engineering manual included specifications and drawings showing Vaughan's regular method of installation. Vaughan did not keep accurate records of each of the 47 allegedly infringing installations. LD's technical expert Gillette, a wastewater treatment engineer, reviewed the engineering records for all of the accused systems, prepared a report establishing the parameters of each installation, and testified regarding the systems and any missing installation data. 31 Vaughan correctly points out that Gillette's report lacks nozzle placement and/or nozzle angle data for 11 of the 47 systems. However, Dorsch testified that if records on construction were missing it would be reasonable to assume that the installation was in accordance with the standard procedure described in Vaughan's engineering manual.